The Insane Biology of: Sloths
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- Опубликовано: 11 ноя 2022
- Watch the Field Notes companion video to this episode on Nebula:
nebula.tv/videos/realscience-...
Watch this video ad-free on Nebula:
nebula.tv/videos/realscience-...
Watch the next episode of Becoming Human on Nebula:
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Patreon: / realscience
Instagram: / stephaniesammann
Credits:
Narrator: Stephanie Sammann
Filming and Location Sound: CJ Caughey
Editor: Dylan Hennessy (www.behance.net/dylanhennessy1)
Editor: David O'Sullivan
Illustrator/Animator: Kirtan Patel (kpatart.com/illustrations)
Illustrator: Elfy Chiang (www.elfylandstudios.com)
Animator: Mike Ridolfi (www.moboxgraphics.com/)
Sound: Graham Haerther (haerther.net)
Thumbnail: Simon Buckmaster ( / forgottentowel )
Producer: Brian McManus ( / realengineering )
Imagery courtesy of Getty Images
References:
[1] slothconservation.org/the-ety...
[2] www.nhm.ac.uk/discover/what-w...
[3] royalsocietypublishing.org/do...
[4] commons.clarku.edu/cgi/viewco...
[5] slothconservation.org/think-s...
[6]link.springer.com/article/10....
[7] www.frontiersin.org/articles/...
[8] pubmed.ncbi.nlm.nih.gov/31588...
[9]www.montclair.edu/prism/2018/...
[10] www.researchgate.net/publicat...
[11] beckycliffe.com/sloths-slow/
[12] peerj.com/articles/875/
[13] academic.oup.com/jmammal/arti...
[14] peerj.com/articles/5600/
[15] slothconservation.org/newly-p....
[16] www.science.org/doi/10.1126/s...
[17] royalsocietypublishing.org/do... 
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I watched this at .25x speed out of respect.
Must have been an exhausting 100 minutes
I watched this at 2x speed out of disrespect.
This video would be the same speed for a sloth.
I Read This In .25x Speed Out Of Respect For Your Respect And Typed .25x For Continuity Purposes.
Very smart joke man, thumbs up!
"their ongoing survival seems like an actual mistake" I felt that
I *AM* that remark.
"an evolutionary blunder"! Cracked me up!
"An evolutionary blunder has allowed them to slip through the cracks." 🥲
F's in the chat.
"Luck" would have been nicer wording. Although but then the video went on to say the sloth had a hand in it's survival to and how amazing it's physiology is.
As Sam O Nella once said Sloths were the creatures that when asked to choose between being a plant or an animal said "Both"
Who is Sam O Nella
@@nirvanic3610 RUclips the name
That is just brilliant 🤣🤣🤣
@@nirvanic3610 highly recommend his channel 😅
Fungi have the same elusive answer. The "wood wide web" and the way mycelia transport nutrients from one plant to the other in an economic system of saving, giving and taking from one plant to the other shows a sort of intelligence we still are trying to wrap our heads around.
As a Costa Rican tour guide I ask that you take a moment to help us shed light on a serious issue occurring here: in La Fortuna of San Carlos (very popular tourist location) some private land owners are setting up “Sloth parks” where they are forcibly taking sloths from their place in the wild so that they can put them in their “park”. We have contacted the authorities but very little is being done as evidence is difficult to come by (there are rumors that homeless or drug-addicted citizens are paid to turn in the sloths in bags, but the declining populations of sloths in the wild make it clear that rumor or not, *something* is going on as they have disappeared far too quickly for it to be caused by natural selection, etc.) There is even a video of our current president with an “expert” saying that there is no evidence that these parks are doing anything illegal, but it is clear to the local guides as it is unnatural for a group of sloths to all reside in one small location (and mysteriously, all of the sloths typically found in the area have almost completely disappeared, when we would often see at least one, two, or three per day along the forest edge by the road). Please help by posting and spreading the word on social media or whatever you use, we want to put pressure on the government to take this issue seriously before it drastically affects the sloth population.
Horrific!Thanks for information!
Hmm it seems that this comment needs more attention
The scientists is taking them and probably killing them for their studies.
seems the Government is really Slooow over there.. 😂
@@Tedkelvinbruh
Biologist watching a sloth moving in a single branch a whole day for science:
*THIS IS EPIC*
Your name man 🤣
i mean that would def be a pretty cool job
Hahaha
@@q1s2e3w you just sit there and watch a sloth move from on brach to another 😂 and you can get money out of it 🤣
As an biologist it actually is kinda epic because it's unseen within other animals
Everyone who eats avocados owes a debt of gratitude to ancient giant sloths. They were big enough to eat the avocados whole, stone and all. Then the stone passed through their digestive system until it was deposited with a helpful amount of manure. Thus giant sloths spread avocados around and allowed them to grow and flourish.
This was always one of my favorite biology fun facts.
That was hilarious 🤣
I could have lived my life without knowing this just fine.
Avocados were supposed to be extinct when the ground sloths went extinct, but humans loved avocados so much we basically saved the plant
Avocados taste like shit.
The "Insane Biology" series is top notch. You're an incredible teacher and filmmaker. :)
Also with a wonderful narration voice.
I second that! AGREED. Great channel great content and another excited new sub! Much love from Canada
That's so interesting to see the cycle between sloths and moths! Our crew filmed a project that tries to understand moths' behaviour and how they evolved to evade bats!
I would love to see the biology of the goblin shark
I’d prefer the Greenland shark
@@mythicmars4848 the Greenland shark would be pretty cool, the megamouth would also be cool
Worm
I'd love to see the biology of me going goblin mode
Gobling Goblins aren't good enough for you? You require not only Goblins, but those of the Shark variety?!
I had no idea I'd be staying for the whole video! My respect for the Sloth has increased massively!
I just CBA to move on to something else.
same hEar,, n that's startin from a smthn r uuttawzzzzzzzzz , zzz . z
Yeah, more to them than meets the eye
19:22 That itching is the fastest movement of sloth I have ever seen
The sloth temperature control is the most insane of your fascinating insane biology videos. Also the Henry Rollins poster in Mike Butcher's office.
This was an insightful presentation on the biology of the Sloth! They are incredible animals that have found a unique way to survive our brutal environment! Thank you for sharing this amazing video, and educating people on the fantastic animals we have on our planet we call Earth.
😚😚😚😚😚😚😚😚😽😏
And few animals have cuter faces ! Or babies !
Just goes to show, life can find more than one way, even among mammals
Seriously thank you for your work! It makes me realise that animals I thought I know about are the ones I know the least about.
Hello!! I'm from Costa Rica and I study Geology on the University of Costa Rica where there are several sloth families living around the campus, I have seen them even doing the hilarious poop dance you were talking about. I really love your channel and it always amazes me your story-telling technique. Hope that you have a wonderful time on our country!
It’s not just sloths that do the poo dance mate.
Heh heh heh...
Australia
Sloths are like the perfect gym bros, strong, yet humble
My "spirit animal" never looked so good. Thanks, guys.
Can we take a moment to appreciate the quality of the video. Hats off
I'm not done yet haha.
Can you take a moment to learn punctuation?
@@Dowlphin haha u got a point....haha,....hey !!!!!!!! oh my god ! are u her ? ...the lady I'm getting tortured for? haha.
Thanks for all the work you guys put in!!
Defo my top 5 favourite channels on RUclips ❤️
Slaking’s 160 Base Attack Stat makes all the more sense now 😳
LOL
Bruh you're so right 😳😳😳
Its 100 Base Speed now doesn't make sense even more though lol
@@DeuxisWasTaken slaking probably is on ground sloths that where 6m hight and 4t weight
I love sloths. It's heartbreaking to hear they are endangered specie and more saddening because there's no data to back it up. I hope you and everyone succeeds.
I mean, sloths are shown to be extremely dumb. Not their fault, evolution backed them into a corner of failing attributes. So much so that nature gave them a safety helmet.
I mean they seem very very efficent, just rellying on an innefficent resource, sort of like anti humming birds, wouldn't call them failures at all.
The only species not endangered on our planet is probably the common cockroach. They will be disappointed when we off ourselves, because they will have to start earning their existence.
this channel needs to explode eventually. What you do is amazing
girl, you are AWESOME. Your smooth soft voice, your structured script, the obviousy massive amount of research going into this, the beautiful final form of the edited video... these are perfect you rock
As a scientist myself (physics) with many non scientist friends i am very aware of tthe communication problem. Like i m fascinated by science, extending way outside my field, so i have a pretty good level in some fields like psychology and biology, i'm actually taking courses on that last one for my future (wanna specialise in astrobiology) so i have a hard time finding long form, deep dive content that isn't limited to the pop cullture view of biology, or isn't a full on lesson or documentary.
Your video, like tier zoo's always teach me something new, for tier zoo its more fun oriented so i might catch some trivia but these deeper dives studying a particular topic are so dense in info they're like the neutron stars of yt educational biology lol
she is the narrator bruh read the description
Green nature drink, ocean power, drawings crayon, doctors and molested kids, ;questions for molested when young, also therapists and engineers, only pure scientists
I love how they’re so slow that you can see them blink 😂 truly a marvelous little creature
‘Babe wake up, new insane biology of __ dropped’ meme but actually. I loooove this series
Loving the light you shed on what biologists may do. I am not in this field but have gathered much insight into the varied work biologist may involve themselves in. Keep up the A Grade work Real Science!
If you liked this video, you will love the Field Notes companion episode on Nebula! It's a different format than what we usually do, but I'm so so happy with how it came out. Let me know what you think in the comments here! nebula.tv/videos/realscience-sloths-tracking-the-untrackable
As a Costa Rican thanks for not showing any Costa Rican researchers or conservationist that work super hard to support all those Americans 👍🏼
Also the collaboration of privately owned land to plant trees is a initiative of the government and we pay, with tax payer’s money, the private land owners to plant and keep those trees.
Also sloths were declared the national animal of Cost Rica…
This video gives the impression that we do nothing where the reality is that you can find this many to do research thanks to the expensive conservation efforts we take and the support of our researchers
@@dsolis7532 Hola mi amigo, disculpe la molestia espero no enfurecerte con este comentario pero considero que se debe hacer.
Primero quiero comenzar mencionando que estoy de acuerdo con usted, me hubiera gustado ver nuestros científicos mencionados en este vídeo ya que nosotros que trabajamos en el sector nos esforzamos mucho por la flora y la fauna que tanto amamos.
Segundo, si creo que hay una manera de decir las cosas y también pienso que es importante reconocer la contribución que hacen los países extranjeros para lo que es la investigación de nuestra biodiversidad. Creo que para nadie es un secreto que una gran porción de voluntariados y expertos no son Ticos (pero recalcó que nosotros también tenemos expertos realmente increíbles que no suelen obtener el reconocimiento que se merecen). Aun así, mucho del dinero también viene del extranjero, en especial el estadounidense nos da una gran contribución a la economía. Siento que es importante agradecer cada vez que nuestro pequeño país se menciona en algo que nos puede dar más atención, y como resultado más movimiento en el turismo, ya que esto nos ayuda obtener más fondos para investigaciones. Creo que este canal es uno de esos, porque aunque la mención de nuestro país fue breve el canal es grande y ellos se esfuerzan mucho en siempre dar material de alta calidad.
Amigo, estoy de acuerdo contigo pero no nos enojemos - esto no nos ayuda obtener lo que queremos. Nos representas en cada comentario, y no quiero que parezcamos como un país enojón o malagradecido.
from my understanding the hard part of hanging for humans is the blood rushes out of the arms making our muscles weak
Get a man to narrate it next time, I'm not going to listen to a vvoman talk for 20 minutes. Yeuch.
[miracle, house, shelter]regular brown core, not black and white
brown with blue= good
brown with purple= good
brown with gold= good
brown with white= good
All colors mixed
Also the molested kids so there might not be like a most high
Congrats on 1 million subscribers!!!!!!
Thank you for making this video. You research is done very well. And the topic covered in your videos always feel very novel to me. Love it. ☺
This is one of the best episodes ever! I knew Slots were incredible but so many different traits exclusive to slots were surprising to learn! Thank you for this amazing video!
I only discovered this channel recently, but it has already become one of my favorites! Thank you so much for creating such highly educational and entertaining videos!
randomly stumbled on this channel , now I’m addicted.
It can go on my list of shows to watch.
Same here 😅😃🤣👍🏽👍🏽👍🏽👍🏽
i have a friend that works in the field, and he's doing his post doc on conservations of snake (🐍) populace in South America and listening to his stories in research is always a delight
[miracle, house, shelter]regular brown core, not black and white
brown with blue= good
brown with purple= good
brown with gold= good
brown with white= good
All colors mixed
Also the molested kids so there might not be like a most high
Info from a bookmind smart smart kid** **
@@existencemystery what are you trying to say? You're not making sense dude..
Stay away from drugs kids. 😄
Dunno why this line made me laugh, but hearing you say "Being high in the trees" and seeing them move so slowly made me laugh so hard, I feel like you need to be high on the trees to connect with these incredible animals (one of my faves) that are high in the trees!
This is not only insightful but also hilarious af
I love sloths, they used to appear once in a while on a tree in my mother's house, it was a whole show
Incredibly well made video, it singlehandedly reignited my passion for biology and reminded me why I even wanted to pursue scientific endevours in the first place. Losing sight of your dreams of doing meaningfull fieldwork is a very real thing when sticking to the clean cut roads of many educations, atleast in my experience. So, thanks again for this excellent showcase and keep up the good work! Easiest subscription of my life :)
How is it going
These insane biology videos have always been top tier. Never been a video in this series I’ve not been enthralled in.
Fun fact: the two genera of existing tree sloths (six species total) convergently evolved from two different lineages of ground sloth. The ancestors of two-toed and three-toed sloths diverged 28 million years ago.
I almost made a terrible mistake today. I almost assumed I didn't have much to learn about sloths. So glad I clicked. I am now a fan of sloths.
Extremely interesting video about Sloths. I wish that you would have covered more about their biochemistry & physiology, i.e., the type of muscle fibers (smooth vs. striated), the type of blood cells (RBC's/WBC's, etc.), their nervous system and internal anatomy. Perhaps in another video? 👍👍
The most laid back creation.
Thanks for the vid.Youve pretty much taken over discoverys place for awesome nature docs.
Such a good video. Well made. Field work changed my life too. Keep up the good work!
This is fabulous! The quality of every aspect of your work is over the top - thank you! ✌🏼
Awesome work Real Science team! Your choice of topic is always so intriguing and your footage to accompany the voice-over is spot-on!
I've been loving these videos for a while, but I especially appreciated getting to hear a bit of your own story in this one!
Thank you so much for making such a wonderful and informative video - It's amazing how much more there is to understand about the natural world!
Actually, understanding through experience, the modern paradigm of fitness versus physics a sloth makes a whole lot of evolutionary sense. At one point I knew that I had to strengthen my core, or the weight of my upper body would cause permanent damage to my spine especially due to the nature of my work and my age. Naturally, for several months I approached this problem by doing several sit-ups and squats every morning. My back gave out anyway and I didn't even get a 2 pac out of it all. It turns out that physics has an interesting solution to this. One of the best ways to achieve lasting and showing core strength is actually the plank and reverse plank positions using a yoga mat. It turns out that sit-ups can actually cause spinal damage. It's been 2 years since I learned that, and I feel and look great. I'm 36.
Yeah- there is a school of thought that the main job of core musculature is to keep the core rigid during under load, and strengthening exercises should reinforce that
One could say sloths are simply... built different
Sloths are a great teachers. They tell us to relax, everything will be all right
Thank you Real Science. One of THE BEST channels out there
That sloth with motion tracking is having the time of it's life XD.
This video was spectacularly made. A perfect balance of interesting visuals, detailed information and making it easy to understand. Thank you for such great content !
This was such a great documentary. Well DONE. I learned a lot and it was so entertaining, to learn about Sloths, who are one of my favorite creatures.
Really looking forward for the new series!
I'd still argue the adaptions of the sloths are not great, simply due to how un-adaptable their lifestyle is to any environmental changes.
Also I had always assumed that their ease of hanging from branches wasn't really about muscles, but rather passive, hook-like arms.
Interesting information and great documentary.
I see that we both can’t get any sleep huh
Amazing episode! I love that you include interviews with the actual scientists and how meaningful their work is for measuring their decline in numbers and protecting the sloths.
I love to see these well made, longer form videos!
There is something oddly charming about sloths - kinda defying human ideals and just kick ass in their peculiar and unique way.
i love watching your videos! your passion is transmitted through every single one, thank you
U either hate those people or u ARE ! those people haha!
It was so great to meet you Stephanie. Thank you.
Jolly good show! I loved this learned a lot from this one episode, some of the best content I've seen on YT.
They rock in their own slow ways ❤
I am so glad I found your channel!! I have added, to what my sister calls useless store of information. Lo and behold this has helped her many times. Keep 'em coming, love the show.
What video says : "Sloths have remarkable grip strength"
What I ear : "Sloths are remarkable at hugging"
2:20 I knew that sooner or later I'd get an honorable mention in Real Science! Thank you so much for this video! Sloths are so fascinating, like how awesome is it that they literally do a poop dance?
"In our minds, the reason something is slow is because it sucks at being fast. That slowness is the inferior opposite to speed."
I've NEVER even thought of this paradigm before because of how ingrained as normal and factual it is in our minds. I've had such a huge paradigm shift because of these 2 sentences alone. Thank you!
We could argue this is tendentially natural for young people. This would also explain the outrage when World of Warcraft introduced Mists of Pandaria and they were constantly told to slow down. But such an important teaching as contrast, addressing the right audience. When a team activity results in a 'wipe' because people were hurrying too much and then took time getting back to action, I always tell people that slower is quicker. I might also refer to the pro-level discipline of consistency racing where the aim is not to minimize your lap times but to have steady ones so that resource consumption can be planned properly and you're not burning through them. - This is what is also described by the saying "Slow and steady wins the race". - Finally, this is also game theory. If two racers at the head are battling each other fiercely, that burns up lots of resources and might cause mistakes, and racers behind them can benefit from that if they 'prey' on the right moment to exploit.
@@Dowlphin I kinda thought that was just the pandas' culture. Like laid back.
That sloth scratching itself at 15:17 is the most relatable thing ever.
Steph, this is amazing I love it!
I love how they're always smiling.
I'm just like a sloth. i'm not lazy, I'm just efficient!
Im amazed!! Im from Costa Rica and I have been wanting to go to the sloth conservatory. This video just made me want to visit it even more.
Just want to say this is one of my favorite youtube channel. Keep up the awesome work!
I’d love to see an episode on life in Antarctica. I know there are unique species there.
Two-Toed Sloths (genus Choloepus) and Three-Toed Sloths (genus Bradypus) are the sole living genera of the families Choloepodidae and Bradypodidae respectively, despite the superficial similarities, these two monotypic families are not closely related at all, the former is the sole extant family of the superfamily Mylodontoidea, which more closely relates two-toed sloths to the darwin's ground sloth (Mylodon darwini), while the latter is the sole extant family of the superfamily Megatherioidea, which more closely relates three-toed sloths to both the cuvier's colossal ground sloth (Megatherium americanum) and the jefferson's ground sloth (Megalonyx jeffersonii).
Thanks!
Man, learning about the giant ground sloths blew my mind and made weird amount of sense.
Not closely related?! Interesting. This tells me that we know very little about the pressures of evolution. Eyes, teeth, etc, these are easy to understand why they have developed several separate times. But the fact that convergent evolution created the sloth more than once is very interesting! We give very little respect to these animals...
So those ground sloths were not related? I'd like more detail given the claim the 2 and 3 toed sloths are very unrelated.
The three-toed sloth. My spirit animal. Fascinating, well-produced video. Thanks for sharing! 👍
great to see how big this channel and real engineering is becoming
Actually koala bears have the same adaptations as sloths despite the fact that they live a half a world away so living that way must have its advantages.
You could honestly see it in this way as well: these types of animals(slow and not showy) are not running away from anything.
You can see how cheetahs and eagles and running from another predator or hunger and to catch their prey, but sloths and snails have a home or can easily protect themselves from other predators and they can easily get their own food or sustenance easily as well.
Stephanie, your work is superhummann.
Exceptional reporting - I'll never think of sloths the same way again.
Please keep making these. I love these strang biology vids!!!
Sloths are my favorite!!!!🥰🥰 Always have been always will be!!! 💖💖💖
Next time you attempt the "Hang for 100 seconds Carnival Gimmick" make sure to put your thumb under your gripping fingers and not above! It creates a wedge that allows you to hang for much longer due to mechanical advantage. I have won $100 for 100 seconds at this gimmick using this technique. I also rock climb but can't do the 100 if I use a traditional "thumb over fingers" grip. Good luck!
The reason they are slow but they survived for so many years is because they always smile. Smile Makes Friends !! :)
Thank you for these high quality videos, the passion really shows ❤️
I have a soft spot in my heart for sloths. I know they’re slow but secretly hardcore.
Haha
Very interesting 👌 Amazing creatures
You're research are absolutely incredible..thank you
I just found your channel and have been binge watching - love it ❤ thank you for these great videos
"it's not a bug, it's a feature"
The developer of Sloths
"It just works"
Humans use pendular motion, too. From our hips to our ankles. This is why we can walk and jog basically forever.
"One more defect would've made their life impossible"
The whole intro was a diss to the poor thing 😭😭💀💀
i love this channel so informative and backed up with science. Everything thats important summed up in one video love it. Keep up the good work
so cute and strange! I'm worried that there is not many of them and they have to reproduce sooo slowly like everything they do.
Plus sloths are pretty dang cute lol this video was great! Always wonderful to have a new appreciation of an animal :)
I know! LOL!
Excellent production. I appreciate it, thank you.
Yey a new video
Makes so much sense considering that the best way for a human to increase there strength is to go slow when it comes to their movements during weightlifting. Also it's amazing how densely muscle strength can be packed into something so small, I already knew that this could be the case for humans thanks to my dad being a deceptively strong string bean but to know it could exhibit in such an extreme fashion. Also I already thought ground sloths where magnificent and terrifying, I'm quite curious how much of this absurd strength to body size ratio they carry over even if there not benefiting from hanging out in trees all day and the inverse square law.
Love this so much! It's a great example of how something can seem a bit silly and dumb on the surface, but become incredibly interesting, wonderful and exciting upon further (scientific) scrutiny. The unexamined life is not worth living, man