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6 Ways Species Rely on Humans for Survival

6 Ways Species Rely on Humans for Survival

{♫Intro♫} It’s not a secret that we haven’t been
the greatest at taking care of the planet we live and depend on. But thankfully, there are countless conservation
efforts happening all over the world to try and undo some of that damage. Because, y’know, better late than never. When a species’ population is in decline,
we can try to find measures to slow — and hopefully, reverse — whatever is going on. But sometimes, a population has declined so
dramatically that they require serious human intervention to ensure they don’t disappear
forever. That’s when a species can become conservation-reliant. This means they’re in need of consistent,
species-specific management in order to survive. What exactly that looks like can vary… a
lot. Sometimes, it means directly protecting a
species from whatever is threatening its survival, like invasive predators or a toxin in their
habitat. Other times, it means that a species can only
survive in human-run breeding programs and may never be able to live in the wild again. The reasons a species becomes conservation-reliant
are often our fault, but at least we’re stepping up to care for them. So, here are six ways a species can become
conservation-reliant, and some of the strategies we’re using to keep those species alive. Sometimes, when a compound is introduced to
the environment, it has a dramatic and often completely unintended effect. Take the story of the California condor. These condors are iconic scavengers and are
the largest wild birds in North America. But they’ve also become severely endangered
due to lead poisoning. This happens as condors ingest ammunition
fragments in the carcasses they feed on, and it’s a major problem. At one time, the total condor population was
as low as 22 individuals! Thankfully, in the 1980s, people did start
captive breeding programs to boost those numbers, and today, all 400 or so living condors are
descended from those birds. But their story isn’t over. Even after all these years of aggressive management,
their population is still completely dependent on the repeated release of captive-bred condors. Part of that is because these birds reproduce
very slowly. They only lay an egg every 1-2 years, so infertile
ones can have a significant impact. To help with this and keep wild pairs nesting
successfully, biologists have put their rock-climbing skills to work, visiting condor nests on cliff
faces to swap out any infertile eggs with fertile ones from captive-bred birds. The bigger problem, though, is that these
animals are still being poisoned. Wild birds have to be screened for lead poisoning
each year, and then treated if there’s enough lead in their bloodstream. Which requires a lot of time and energy. Scientists are hoping this won’t have to
go on forever, though. Their goal is to establish self-sustaining
wild populations in the future, and to use education programs to reduce the risk of lead
poisoning. The world is becoming a more interconnected
place all the time. And while that’s great for a lot of reasons,
it also means things like disease spread much more easily. There’s a long list of species that have
become conservation-reliant because new diseases were introduced to their environment. And one of them is the Panamanian golden frog. This frog is Panama’s national animal, and
it packs a toxic punch so powerful that one individual contains enough toxin to kill 1200
mice. It was once found near forest streams along
the slopes of Panama, but the spread of the fungal disease chytridiomycosis has now wiped
out the entire wild population. The chytrid fungus is a serious killer. It causes microscopic changes in amphibians’
skin so that it becomes really thick. And since amphibians absorb water and salts
through their skin — and sometimes even breathe through it — this typically causes
heart failure or suffocation. In 2018, research published in the journal
Science revealed that the deadly strain of this fungus originated in East Asia, and likely
spread to Panama through the global amphibian trade. So, yeah, this one is probably our fault,
too. As far as we know, these frogs now only exist
in managed breeding facilities and zoos, but researchers have been working on ways to protect
future frogs if they’re ever reintroduced to the wild. Their work is incredibly complex, and they’ve investigated beneficial bacteria,
probiotics with antifungal properties, and gene expression in captive-bred populations. They’re even perfecting techniques to extract
and freeze the frogs’ sperm, to hopefully add some genetic diversity into their gene
pool. Although the future is very uncertain for
the Panamanian golden frog, this research could greatly benefit other amphibian species,
too. Because it’s not just the golden frog that’s
in such dire straits. This fungus is known to infect hundreds of
frog and salamander species across the globe, and with so many of the world’s amphibians
are already threatened with extinction, protecting them from the chytrid fungus is critical to
their survival. Many of these species are supported by a group
called the Amphibian Ark, which supports amphibian-care efforts around the world. But ultimately, that’s a lot of species
to take care of. So the sooner we can get them back to the
wild, the better. Sometimes, multiple factors are at play in
a species’ decline, and their conservation-reliance hinges on more than one threat. That’s the case with one of the world’s
most famous shelled animals: the Galápagos tortoises. First, these gentle giants were dramatically
overharvested in the 17- and 1800s, mostly for food or oil. So at least one species was already extinct
before conservation efforts were even considered. Then, even after we stopped eating the tortoises,
the threats didn’t go away, because they still had to deal with a bunch of invasive
species. Whether it’s accidental or not, we humans
have a bad habit of bringing species to places they don’t belong. These invasives can displace native plants
and animals, can outcompete them, or can alter their new environments. They can also become a predatory threat. Or, in the case of the poor Galápagos tortoises,
all of these things can be true. For example, black rats were introduced to
the Galápagos Islands in the late 1800s, and they’ve been eating tortoise eggs and
babies ever since. Then, goats were brought there and dramatically
changed the vegetation the tortoises depend on. Eventually, pigs were introduced and started
feeding on nestlings and eggs — and the list just kept growing. Today, the tortoises also have to deal with
an invasive ant that attacks hatchlings, and even invasive blackberries that prevent them
from reaching food and breeding sites. We really messed up those islands, friends. As a result of all this, tortoise breeding
programs are required to repopulate the islands, and in some cases, they’re the only way
the animals can reach adulthood without getting eaten. So far, these programs have been successful
— but even better, we’ve also been able to deal with some of those invasives. By 2006, goats were eliminated from several
of the islands, and black rats were eradicated from Pinzón Island in 2012. Then, two years later, wild-bred tortoise
hatchlings were seen on the island for the first time in a century! That said, eradicating invasive predators
from all islands may not be possible, especially with the larger ones. But there’s still a lot of hope. For the most part, we don’t want other species
to become reliant on us. We want them to survive and thrive all by
their bad selves. But sometimes, the needs of a species don’t
overlap with what people want. And while it’s a hotly-debated topic, fire
suppression is a key example of that. Fires are a normal part of nature, and certain
ecosystems rely on them to control forest growth. The problem is, those forests are often close
to areas where people live, so they get suppressed or otherwise prevented. And the species that rely on them tend to
suffer — like the Karner blue butterfly. It was once found abundantly across 12 U.S.
states and one Canadian province, but in the last 15 years or so, the population has dropped
by 99%. That’s because Karner blue caterpillars
only feed on one type of plant: the wild lupine. And to thrive, the lupine needs fire. More specifically, it needs fires to open
up forest canopies and allow sunlight to reach the ground. Otherwise, it will be out-competed by pines,
oaks, and shrubby vegetation. To get around this, scientists and land managers
are working together to use intentional, smaller, prescribed fires to mimic what the wild lupine
needs, and to protect species like the Karner blue butterfly. Like other conservation methods, it’s something
that takes a lot of time and effort, but many people argue it’s the best option. Finally, sometimes the loss of one species
means the demise of another. This was true for a cliff-dwelling plant species
commonly known as alula — although it’s also called Cabbage on a Stick because, well,
look at it. This plant is endemic only to the Hawai’ian
islands of Kaua’i and Ni’ihau. And unfortunately, its pollinator likely disappeared
before we were even sure what it was. Based on the plant’s flower shape, color,
and size, we now think it was likely a kind of long-tongued moth. But regardless, it seems to be gone now. This means that the alula can no longer breed
in the wild on its own, so scientists had to step in and help. Of course, these plants do live on cliffs,
so this was an extra special kind of rescue. In the beginning, dedicated conservationists
with mad skills had to rappel down steep cliffs to manually transfer pollen between plants. Just in case you thought biologists weren’t
hardcore. Once the plants produced fruit, they were
collected so that the seeds could be grown and cared for in greenhouses. The plants haven’t been found on Ni’ihau
since the 1940s, and although there was a population in Kaua’i, storms wiped it out
in the ‘80s and ‘90s. Right now, there is only one known wild plant
remaining. That being said, conservation efforts made
the plants quite popular in greenhouses and nurseries around the world, so they’re still
out there. And the hope is that, eventually, they can
be planted in the wild again. But without a pollinator, this species looks
to be heavily conservation-dependent for the foreseeable future. Sadly, in many of these cases, the damage
has already been done, and some of these species may never thrive without human intervention. But intensive conservation programs are preventing
them from disappearing forever, and many researchers are hopeful that they’ll be able to get
their species back into the wild. Either way, one thing is for sure: One of
the most important factors when it comes to protecting the world’s biodiversity is just
understanding the impact we’re having. So as we keep learning and teaching each other,
maybe we’ll stop some future problems before they start. This episode of SciShow is brought to you
by our patrons on Patreon — so if you’re a patron, thank you! We couldn’t do all of this research and
production stuff without your support, and your generosity makes a huge difference. If you want to help us keep making free online
content like this, you can go to {♫Outro♫}

100 thoughts on “6 Ways Species Rely on Humans for Survival”

  1. 2:55 … use education programs to reduce the effects of lead poisoning… is this to EDUCATE THE BIRDS? Please clarify

  2. Regarding #1 in most places now there is laws that require the use of steel shot (as opposed to led) when hunting birds to prevent led poisoning of animals and water.

  3. Controception might be more effective then Poison. . When one of population dies . They make more . If their sterile females. The males will wait their sperm

  4. Are there any species that scientists were like, "Nah, not worth the effort of conservation" or have made go extinct on purpose?

  5. Maybe this is a stupid question but… Have they tried to introduce different pollinators to the plant to see if it will work? Or are they just waiting for one to come around?

  6. The Yellowstone fire, 1980s, changed how forest fires are fought. Americans were outraged that the fire was allowed to burn. Politics drive me nuts sometimes. On a happier note, utahs condor family had a baby a few weeks ago.

  7. How important must humanity think themselves that natural selection is something we consider a "moral dilemma?" All the liberal value projectors must really feel good after watching this. In 100 million years when multiple cataclysms have killed countless waves of frog and turtle species over and over, once ALL TRACE of human existence is wiped from the face of the universe, do you think this video will have had any value? So much human effort wasted to conserve weeds and parasites because it feels good, not because of scientific value. What does it say about humanity that this video is overwhelmingly praised?! It's literally a collection of pointless victories for backwards conservationists obsessed with small wins. Look at this plant! I saved it! Look at me!

  8. More anthropocentric garbage. We screwed them over in the first place. They only "need" us because we are going to continue to destroy ecosystems and we may be able to keep them alive artificially. What nature needs is for us and our poorly understood and handled technology to disappear. YOU are not awesome Hank, the technology is awesome, without it you'd be a dumbass caveman, just like we were before any technology came along. We almost went extinct AFTER our big brains came along. Again, it's not you, it's the technology. Science and ego do not mix.

  9. Stephen Fry on QI tells a darkly funny tale about why it took so long for the giant tortoises to get proper species names. It's not just that they were edible, so were so edible that for the longest time, none ever made it back to England for the the taxonomists to catalog.

  10. will anyone object to a "whataboutism"?
    how many species do humans rely on?
    a billion? gazillion? brazilian?

  11. Quick question: can conservation acts affect natural selection?🤔 I mean it could be a situation where humans cause damage to nature which leads to nature endangering the lives of these species. But doesn't that mean nature is now shifting its natural selection process to only select those that can survive in this environment that changed due to humans' actions? So if we're doing conservation acts, aren't we messing with natural selection now?

  12. If you advertise that "nerd" biologists have to go to extremes to help prevent extinctions, that will motivate the "jocks" to take more action to save the planet due to their ego. Stereotypes…..

  13. Natural selection means surviving with what the species is hit with, including being hit with us. Stop forcing pandas to breed and def stop forcing flowers.

  14. It's not funny or joke, and the people who made the very worst mess our world, the most disgusting and forever polluting our world have done nothing to clean it up so quit treating it like a joke it home to everyone

  15. This is for the third video. I don't like the way you do the smarmy joki it's funny it's not funny Ha-Ha lines. I don't like the way you present any of it. It's disturbing listening to you

  16. the flowers that the butterfly need looks like one we have loads of here in Sweden, try sending the butterflies here? our (previously?) most common one, small tortoiseshell, seems to be almost gone from my area.

    It seems its not just something i thought; "once among the most common butterflies in Europe and temperate Asia, this butterfly is in very rapid decline, at least in Western Europe."

  17. 7:04 "Eliminated" is an understatement. They were actually sniped down, all of them! ( )

  18. some scientists say we need MORE trees to help with carbon dioxide, oxygen distribution,and to help lower the earths temperature since we are already cutting down billions of them already per year, but you guys are saying we need LESS trees for other species to survive like the Karner blue butterfly, so….which is it, do we need more or less trees?

  19. didn't know blackberries could survive in the tropics. but besides that the sad thing about the Galapagos tortoises is that none of the animals mentioned in this case can really be blamed; they saw food and did what animals do, tried to eat it. the only ones in this case that really made a choice were us, humans.

  20. How do we know when a species was in its way to extinction with or without humans? Since Extinction is a part of life. Also besides islands sometimes, I think it's wrong to call something invasive again part of nature when a species sets up shop in a new area. What we really need to do is learn from what we have done so far so we don't kill exterminate many more species. But if you think about it we are an environmental stress it's weird to call what gonna do unnatural we are animals and part of Earth

  21. I have a question! When i put out something to dry under the summer sun everithing somes back smelling like "sun" all the things i dry like that has a very specific smell after tha summer sun baked it all day. What is that smell and why it happens with all kinds of fabric?

  22. Im very confused now Wild Lupin is a weed here and grows everyfrigging where guess there is some genetic difference between ours and the american plate one

  23. Me at the start: "Oh how refreshing, a video that shows ways we are good for the environment."

    Expectations =/= reality

  24. Disappointed there was no reference to Australia or New Zealand in this video, both countries spend incredible amounts & undertake incredibly innovative science & strategies to save endangered species. You speak of the Galapagos Islands as being too big to remove predators? New Zealand intends on removing rats from their entire country, MUCH bigger than the Galapagos! & they have already tested it successfully on smaller islands & it's fair to say they will likely succeed in the long term, because they are determined to do so & are putting the required money into it.

    -Australia is protecting the endangered bilbies by eliminating 6 BILLION invasive rabbits, with 2 biological diseases deliberately introduced for that purpose.
    -Controlled burns are a normal part of bush management, no matter how close to buildings,
    -Islands are used as arks (both countries) & predator proof fenced enclosures many hectares in size built to safely reintroduce endangered animals into their natural territory
    -Tasmanian devils with their contagious facial tumours are trapped, infected ones euthinased & healthy ones relocated to breeding programs on the mainland & then introduced into new island territories to live wild, while protected from the disease
    -technology has been used to develop poison sprayers that identify each individual animal that passes them & then spray onto feral cats, using their grooming behaviours to override their ability to avoid eating baits
    -Quolls are deliberately poisoned with poisons that make them feel really sick, in order to teach them to avoid eating the invasive species that will poison them to death (into which the intentional poisons have been injected)
    Possums are on the dinner table (and fur as hats) in New Zealand in order to help reduce their numbers & the damage these invasive species do

    SO many innovative & expensive projects underway in both New Zealand & Australia, really deserve at least one mention imo! The above is just a tiny sample of whta's currently happening

  25. What about dogs? Half if them are bred to be too mentally challenged to survive on their own with physical defects that make them "cute"(🤮) but also severely impair their ability to move, breathe, mate, etc….

    If we stopped breeding them to be our personal slaves for entertainment and companionship, most would not survive

  26. 7. Domestication. Species like cow, lamb and chicken are kinda freaky in the wild. As in, they would be dead. And how we preserve them, we eat them ourselves and continue their populations by mass breading them before they die. Ouh, and we feed them too, so we can then feed ourselves from their corpses. And we haven't even touched the egg situation yet. Or well, we kinda, did, but not really.

  27. I'm actually impressed that we (humans, but more specifically amazing botanists) noticed that Alula didn't have any insect pollinating it before it was to late. I mean how do you notice that and figure out that's what's happening and that you need to manually pollinate this plant? Which grows on cliffs??

  28. I'd like to see an episode covering all the species that THRIVE solely because of humans. Basically any plant/animal we eat, we use for recreation, or ones we consider pests because there are SO many of them.

    The rock dove is the best example that comes to mind. A species that ONLY nests on vertical rock faces and would otherwise be pretty rare due to rarity of exposed vertical rock faces, except for the massive human construction of concrete buildings that provides them with an ABUNDANCE of nesting sights. You might know the Rock Dove by its more common name: Pigeon.

  29. Washington, DC: "We need to save the forest! How can we do that?"

    Montana: "Prescribed burns and selective logging with planting programs that give back."

    DC: "…Montana, sit down and let the big boys handle this. We may be 3,000 miles away, but we know more about your forests than you do. SUPPRESS ALL TEH FIRES! NO LOGGING ALLOWED!"

  30. Now where do we draw the line in the difference between trying to save a species vs letting nature run its course and the evolutionary process to eliminate the species that are adapting slower. I understand conservation reliant due specifically to humans

  31. It's a little weird to consider the cabbage on a stick as an endangered species. We can grow them. Are they worth growing? Maybe. Something might eventually figure out how to pollinate it.

    How important are these Hawaiian stick cabbages really?

  32. (This Gospel Tract is posted regardless of location and subject with discernment. The bible says Christians are called to proclaim the uncompromised and complete biblical gospel (Matthew 24:14, Matthew 28:19-20, Romans 1:16, John 12:48));

    Are you Deceived By Church/Man's Sinful Ways, Vain Theologies, Sciences, Politics, Entertainment, etc?
    False/Demonic Religions, Evolution/Atheism, rapture, easy believe gospel, one modern pastor, pagan holidays (Christmas-Easter, etc) ritual gatherings, worldliness (movies, sports, entertainment, pet idolatry, etc), unbiblical dress, uncovered women's heads, instrumental music, worship pastors, youth pastors, building centered faith, no Matthew 18 discipline, the tithe, heretical reformers…do not be deceived!

    Good News! Find Eternal Life…
    1) Faith… in the finished work of Christ (fully man, fully God) and His perfect sacrifice for sins (John 3:16)

    2) Repentance … turning from your fallen mind and ways to God's Holy ways. (Luke 13:3)

    3) Born again… you must be born of God's spirit to ever see eternal life. In this new life, He gives you a new heart and mind to then serve Him. (John 3:3, John 3)

    4 ) Holiness with obedience…. if your changed by God you WILL, as fruit, strive to leave all sin, worldliness, carnality and false ways (like man made religion) and obey His commands and be holy in all your ways. (1 Peter 1:15 / Hebrews 5:9 / Hebrews 12:14)

    5) Endure in your faith…. You MUST keep clinging to Christ via this saving faith to the end of your life, lest you fall away and have believed in vain. (Matthew 24:13, Matthew 10 and 1 Corinthians 15)

    (Critical & Essential Note: To understand God's word, you have to repent and open up to God. God will give you understanding if you repent and let Him help you. If you don't, you will NEVER understand it in God's truth. This statement comes from the proven experience of obeying the full and complete Gospel, and God; only then will you truly understand the Word of God/Bible).

    This is the biblical gospel to eternal life. All without Christ will perish in their sins in Hell, and, ultimately, in the Lake of Fire, for all eternity. Never ending torment. (Romans 3:23, Hebrews 4:13, Romans 6:23, Revelations 20).

    The gospel is not just a religious action. No, it changes your entire life and you NO LONGER live for yourself but live to serve God alone. Jesus said you MUST worship God in spirit and truth. John 4:24

    Many Christians will be denied by Jesus Christ because they don't follow all of what the bible says. If you love Jesus Christ, you keep his commandments (John 14:15). We are to obey God as fruit (Not works!!!) to show that we are His! (John 14:23, James 1:22, Luke 9:23, and many others).

    Man made traditions, man's flawed theologies, etc has made God's commandments of none effect/null/void/useless! (Matthew 15, Mark 7:3-9, Jeremiah 10:1-5, Deuteronomy 5:32-33, and many other verses). Repent, be born again, obey God in holiness/obedience, and endure until the end, or Jesus will deny you! (Matthew 7:13-29 (v.23)).

    Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ. (Colossians 2:8)

    There are some specific exceptions: If you (or someone who is dying) die today (without having known Christ and holy living, etc) and you (or someone) have sincerely asked God for forgiveness of these (and all other unknown) sins, believing that Jesus will forgive (And has forgiven) you for His Great Atonement/Sacrifice, and repented/changed your mind and ways to follow and obey God's ways at that dying moment, you will be forgiven! Jesus forgave the thief on the cross (due to the situation involving the thief not knowing Christ and holy living beforehand, and how the thief would die on the cross anyways without the knowledge of how to be perfect (which means mature and complete)) because the thief saw Christ as the savior and knew he was a sinner and repented/changed his mind and ways for God's ways, and it counted to him for righteousness and has been given eternal life in God's grace! (Luke 23:39-43)

    And Jesus said unto him, Verily I say unto thee, Today shalt thou be with me in paradise. (Luke 23:43)

    HOWEVER: There is no excuse if someone has (or has had) access to the bible in one way or another (Americans, Europeans, anyone having access to the internet, physical bible, etc). God expects all those who have such resources to use them to gain more understanding of Him and His Word, etc. NO EXCUSES! God knows both the inside and outside of a person. He knows all of your heart and all of your ways. Because of this situation, if we don’t obey, we will have our portion with the unbelievers, and that is ultimately in the lake of fire. (Read Luke 12) So do not practice sin, or this will be your destination.

    God has no pleasure in the death of the wicked (Ezekiel 18:23, 32, Ezekiel 33:11); why die when you can be forgiven and follow God in every facet of your life and live for eternity in God's Kingdom? God is not willing that anyone should perish, but come to repentance, and live (2 Peter 3:9). But you still have a choice….

    Bottom line: You are either righteous and walking with God or wicked following satan, the devil. (1 John 3). You will either live for all eternity with Christ because you lived for God and endured until the end, or perish in eternal torment in hell, then the lake of fire because you did not follow God when you had been given the opportunity to have faith in the death and resurrection of Christ (That Christ is God, died for you), repent and change your mind and ways to God's ways, have received a new heart and mind to serve God in every facet of your life, obey God in holiness, and endure until the end. God will be the just and perfect judge of all this. So repent and live for God so you can live for eternity with Him in His Heavenly Kingdom, will you? The exceptions do apply; God is also merciful. God's word cannot contradict itself, for it is inspired and breathed by God Himself (2 Timothy 3:16). God cannot contradict Himself. He is not the author of confusion (1 Corinthians 14:33), nor can He lie (Numbers 23:19, 1 Samuel 15:29, Psalm 89:35, Hebrews 6:18).

    If you repent (and are seeking assistance), looking for more information, visit and
    Read your bibles with good, biblical discernment! That's the most important thing! Obey The Gospel, Read God’s Word, ask God to help you, discern, judge biblically and living godly according to His Holy Word (etc)!

  33. #5 is why you should NEVER live in or near chaparral or other fire-dependent biomes!  Also,

  34. I have forgotten its name but there is a species of fish in Colchester zoo that is extinct in the wild also Chester zoo that is featured on channel 4's secret life of the zoo is a place that is doing great for the conservation of multiple different species.

  35. Ok but can we get a video where you explain what happens if you slowly cook someone alive. How the process goes,Like how their organs start shutting off, etcetera.

  36. While we have caused many issues, and invasive species can be a major issue… There is an evolution of life, and some species just go extinct… But don't forget how damaging water chestnuts (by extinguishing aquatic ecologies) have been and kudzu (in the american south-west, it has eaten entire towns), in case anyone wants to think it is just the rats and/or the cats. >.>

  37. Thanks for talking about amphibian chytrid fungus! I've spent the last 10 years developing a method to save frogs from extinction in Honduras caused by this disease

  38. Lets not forget avocado no longer has the mega fauna that used to spread its seeds by eating them whole and pooping them somewhere else. Now its only human's love of that gauc that keeps these trees alive and well.

  39. I live in Europe and the butterfly I recently took a foto of is definitely a Karner Blue female.

    I'm really excited right now, can I contact some wildlife agency or something to tell them that their butterflies have healthy wild populations on another continent?

  40. Oh, yeah. Of course. Let us give individual praise to the conservationists. But when a handful of humans in the least did something inadvertently destructive, let's BLAME ALL OF HUMANITY FOREVER. You could just as easily condemn the handful and give praise to all of humanity for the efforts of those who conserve.

    Stop setting this grotesque, self-flagellating example for young people. The environment evolves. It's the very definition of a complex system. Species die out. New ones are born. Stop trying to maintain a static environment where nothing changes. I'm not saying go out of your way to harm anything or anyone. I'm saying stop fighting the evolution of the system as a whole just for the ephemeral feels of a handful of human generations. Otherwise conservation becomes more an act of self-congratulation instead of legitimate selflessness.

  41. Those cabagge on a stick are doomed, they are disrupting more with their visits leaving hooman scent all over, scaring all wildlife from the place

  42. …here are some wild lupine seeds for those within the range of where they grow, if you want to plant some in your gardens. 😀

  43. My Question is, what hunter kills and animal and then leaves it to rot? don't you normally want to keep your kills?

  44. Funny how the increase in biodiversity caused by humans transplanting species geographically ultimately causes a decrease in biodiversity.
    The best way to prevent a species from going extinct is to keep them as pets. If everyone had a Galapagos tortoise as a pet, they wouldn't likely go extinct. Then you could re-introduce them. Hank hinted about this with the flower that lots of people keep in their own greenhouses.

  45. isnt the condor thing just simply cruel? they keep breeding condors and releasing them into the wild just to die by poisoning, if hunting wont stop in the areas they inhabit maybe letting the species go extinct, at least in the wild, should be considered.

  46. Uh, you missed a big part of the story: The California Condor did not drop to 20 or so breeding pairs because of lead poisoning, its number dropped due to DDT poisoning. The DDT caused the eggs to be very fragile and they would often break in the nest. That is the reason we removed DDT from spraying.  That you totally omitted this is deplorable.

  47. Lol we're more concerned with goddamn carrion birds getting lead poisoning than we are with actual human children getting lead poisoning in Flint MI and elsewhere.

  48. Y'all can't just drop the term "global amphibian trade" and then not explain wtf that means. I mean, you /can/, and you did, but I would have preferred you to have expounded.

  49. Also in areas such as New Zealand with a significant population of outdoor cats, they need to have people shooting the cats so that they aren't around to hunt wildlife.

  50. Yeah… I will rewrite the florist/biologist of the story I'm writing after this. He needs to get more athletic for those cliff flowers.

  51. They may be getting poisoned, but unless they feed exclusively at unkempt outdoor gun ranges, I find it hard to believe they ingest that much leftover lead from hunting.

  52. For no. 1.
    I might just be naive. But, ehm…. wouldn't it be possible to stop using lead in bullets? Seems like it could help a lot.
    I also don't know how keen I'd be on eating something shot with lead bullets myself. Seems like it'd be sensible both for us and for the birds.

  53. I disagree with this. I also find it ironic that a related channel, Eons, does a video explaining why the California Condor is an animal who's primary environment doesn't exist anymore and then this channel has this video about the guilt that has mankind crying over itself.

    Let them go extinct. It's normal and natural. Guilt is a toxic human emotion and it makes us do all sorts of silly and unnecessary things, like keeping unfit organisms alive much longer than they have.

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