These Cats Have Human Eyes
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- Опубликовано: 16 ноя 2023
- Get the Season Zero pin set here: store.dftba.com/products/seas...
Welcome to the first episode of a new format for Bizarre Beasts, which we’re calling Season Zero. Over the next year, we will be remastering episodes of Bizarre Beasts that were originally created for vlogbrothers.
First up: the manul! These cats' adorable pupils, it turns out, are a mystery! AN ADORABLE MYSTERY!
The Pallas's cat pin is designed by Evan Palmer. You can find out more about their work here: www.evanpalmercomics.com/
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#BizarreBeasts #cat #manul
Host: Hank Green (he/him)
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Sources:
mentalfloss.com/article/90509/...
books.google.com/books?id=hzN...
www.britannica.com/animal/Pal...
www.wired.com/2014/08/pallas-...
www.iucnredlist.org/search?qu...
www.whozoo.org/mammals/Carniv...
felis-uk.com/2018/06/01/small...
animals.howstuffworks.com/mam...
journals.biologists.com/jeb/a...
www.science.org/doi/10.1126/s...
panthera.org/blog-post/small-...
wildcatconservation.org/wild-...
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Images:
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• This Cat Makes No Sense
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• Pallas' cat feeding en...
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Any footage I’ve seen of the Pallas’ cat in the wild shows them living in rocky, cliffside environments that experience snow; maybe, the circular pupil is advantageous over the slit pupil in an environment with a lack of vegetation due to higher elevations. Slit pupils on land mammals tend to occur in smaller ambush predators that rely on vegetation for camouflage; there’s no vegetation where the Pallas’ cat lives and it’s coat helps it blend into the rocky environment.
Are you a scientist who's going to write a paper on this observation? Because this sounds like a solid hypothesis. ❤❤❤
That is perhaps a selection bias, they also live on cold grassy steppes in the Tibetan and Mongolian high plains
@@lynnrolaf7422 I do have a background in biology, but I’m not pursuing a career in academia. Thank you for the compliment, though!
@@vincentx2850 I didn’t know that, thank you for sharing! I wonder which environment is their main habitat though; environmental pressures are a key factor in evolutionary adaptations. So fascinating!
@@vincentx2850 if I could add to this, it's a higher elevation, which requires more red blood cells. Maybe the reason is to conserve energy the two disc muscles in the eyes would be using to make a pupil vertical. They could have evolved to get rid of the pupil once they started to live in less humanly populated areas. This is just a thought and could be completely wrong.
One of my favorite things Pallas’ cat is that they warm their paws by standing on their tail
Someone said, "Pride is concerned with who is right. Humility is concerned with what is right." Hank and Co. dedicate their lives to science education and have the humility to correct their mistakes. I love their philosophy and wish the rest of the world would follow their example.
Let’s be the ones to follow it
Fun fact
In 2012, the Pallas's cat overwhelmingly won an online vote to become the Moscow Zoo mascot.[
when being awake at 3 am against my will pays off 😎
Saaaaame
Saaaaaaaaame
Yup
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Me too ❤
I feel like we need a collab of Hank and Dr Glaucomflecken. He'd LOVE getting to talk about eyes, albeit not human
Oh yes, please do.
I double support this!
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Okay, now I need this crossover to happen.
Having past Hank and current Hank in the same video is an amazing idea! I love this concept vs. redoing each animal from scratch
I think there are still a few very important mistakes worth pointing out, which can help to clarify the whole situation. In many part of its range manul do not mainly prey on rodents, but pikas. Pikas may look like rodents, but they are lagomorphs, so more closely related to rabbits. And they do not hunt in low light conditions. Unlike most small cats, manuls are mainly DIURNAL animals. That is because their principal prey, pikas (and also things like ground squirrels), are burrowing animals that are active diurnally. The mountains and high plains of central Asia is a cold place, and its important for small animals to gather food during the day. And when they do, their predators will follow.
There is another small cat with a round pupil, the jaguarundi from the neotropics. This is also a predominantly diurnal animal, but for different reasons. Jaguarundi lives in a very competitive environment with many species of small cats, such as ocelot, margay and three species of tigrinas. By adopting a diurnal lifestyle and having the round pupil associated with it, jaguarundi may reduce its competition from other cats.
Similarly, the golden cat, bay cat and marbled cat of South East Asia have an oblong round pupil, similar to a lynx. They too have a predominantly diurnal habit, avoiding competition from things like leopard cat and clouded leopard in lowland evergreen forests. The tricky thing with this lineage is that they can be extremely ecologically flexible. The golden cat in particular have extremely variable coat patterns, and individuals with different coat patterns prefer different micro-habitat and different circadian rhythm, presumably to cope with the highly variable habitat and the great multitude of competitors it face throughout its range. The black and spotted individuals of golden cat are highly nocturnal. Maybe the pupil shape has lower evolutionary plasticity, and the golden cat have to stick with the swiss army knife of pupil shape - the round one.
Hopefully, Hank's corrections will be fluid.
Thank you
I won't watch this video because it has the dumbest title I ever read, but I will say that most felines actually have round pupils, only cats and maybe a few other felines dk have vertically slit pupils
@@darialomurno05 Your comment is not the dumbest I have ever read but only because the competition for that title on youtube is very fierce.
Random aside: There are more than three ways to determine distance visually! Ones that weren't covered in the video:
Relative size. If you know a bird is smaller than a tree, but the tree appears smaller, it's not because you found the world's tiniest tree. It's just father away!
Atmospheric haze: the mountain that is bluer has more atmosphere between you and it, so it's farther away!
Eye kinesthetics: Your eye muscles have to exert themselves more to focus on nearby things. The feeling of strain contributes to a sense of closeness!
Overlap: Stuff in front of stuff is closer than the stuff behind stuff!
This is by no means an exhaustive list. There's bunches more ways we can discern distance visually!
Wow, these are cool! Thanks for explaining 🙌✨
Twice the Hank in a cat video?
Oh boy we won the internet!
Fun fact about the the Pallas's cat
It's body is round
Manuls are my favorite small wildcat. I mean look at it. And they stand on their tails to keep their beans off the cold ground!
Not only the body is round
love the season 0 idea. one thing to think about - the style you used at the beginning of the video, with the original material in the audio/video mode with the changes shown in text only is much less accessible than the style of having "new Hank" popping in to verbalize the change that was used in the rest. Hopefully future episodes will go forward with that method
I'll second this! I was listening while working and only happened to glance when there was a fact on screen, so I'll need to rewatch this later. Obviously this is different than an accessibility issue, but just another aspect to back up the change 💖
I've been subscribed to the pin club since the inception of Bizarre Beasts, and I love receiving a cute new pin each month. But since I already have all the monthly pins, is there a way for me to get the mola mola pin without purchasing the whole set? I don't really want duplicates, but without the mola mola, my set won't be complete. 😥
A great question! Folks in the pin club should be getting an email from DFTBA about this exact situation some time today....
@@BizarreBeastscome to the comments for this question I don't remember seeing an email
@mishmashbooks I have yet to receive an email about this, as well.
"Solitary grumpy temperamental cats"
So cats
This is a great format! Rectifying and adding to knowledge is the way science works! Also more video of manuls is great.
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This (season zero) is a very fun idea, and I'm here for it. Good job, Complexly team!
Hi Hank, dear @bizarrebeasts , I recently thought of earrings with the bizarre beasts designs, and now I can't stop thinking about that. I don't know what to do with pins, but I would absolutely rock bb earings! And I can't be the only one, right? Would you consider making them? Also Bizarre beasts merch for P4A would be amazing!
I have a Siberian kitten with similar pupils. He looks cross eyed at times but he is just the best guy ❤❤❤. You did a great job of teaching this. Thanks!
While I don't get pins, myself (I have plenty of collecting problems.. er.. passions), I love that you're giving new people the opportunity to get old pins. I always love availability, even if it's limited. Someone surely got in after their favorite animal was showcased and glad they're going to grab that pin this time.
I love this concept of showing the old original ones (with additional facts). It makes me unreasonably happy!!
Unless you bringing octopus and goat heat, don't come at me with weird pupils.
What about David Bowie heat?
Thank you ! Very good idea to correct some old things said !
I think these cats are pretty cool, and I think Hank is a pretty cool cat for updating the cat facts
Thank you Hank and to everyone who worked on this.
Knowledge is power.
the whiplash of seeing hank's old office on a video less than 4 hours old. but then it all made sense xd
I LOVE THE IDEA OF THIS SEASON WAHOOOOOO
"These solitary, grumpy, temperamental cats," or "These cats"
Yaay! I just recently discovered BB, now we get the classics??! AND the OG pins??!! ❤❤
I knew most of those things about vertical pupils but the thing about the color gradients is fascinating and new to me.
the pallas cat pin, it seems a lot like a character from some children's anime like: "my neighbor totoro"
Excited for this new series!
This is a cool way to get some new information about stuff I didn't know was already covered.
Always glad to see a channel update and correct information when seeing new or more nuanced info! Love it.
It's the day after Thanksgiving and the only thing I feel is appropriate to do is binge watch bizarre beasts.
I like the dynamic parallax of driving thru farm fields on the highway, it's extremely hypnotic. At distance I often step from side to side using parallax to discern what I am viewing.
THIS! this is what is needed on all channels that give information about stuff on this planet , correct info and updating that info is important , thank you for all you do.
I suppose whatever advantage having slit pupils is, the Pallas cat doesn't need.
I think parallax is more important for us than the video suggests.
Micro movements in our eyes cause us to continuously see the parallax effect. Human eyes are never static, they twitch a lot, even when focusing.
I love this 💖 Manuls are so great, they have the oddest meows.
... (except, why diss the vertical-pupiled floofs? They're just as cute and perfect as round-pupiled floofs.)
This is fantastic, thanks for the video
Big thank you for the description of the eyes at 1:27. I don't watch these videos but rather listen while I do other things, so not forcing me to stop, rewind and watch is amazing.
nice, excited to see those videos here.
I immediately think of the 1940 drawing style of Tom in Tom and Jerry when I saw these cats the first time.
Love this grumpy looking cat!
"I don't know, and neither does anyone" 🤣
Is there going to be a way for us that have been here from the beginning, and already have the original 12 pins, to get the Mola Mola pin?
Great question! Keep an eye on your inbox for more information on that later today.
Love to see you revisit and edit the older videos. : )
I love this format!
Cute eyes increases selection chances
,,,for the 24-48 hour period a year when selection for the Pallas's cat happens? 👀 Truly some feline speed-dating eye-gazing!
I need more money. Because right now, all I can do is enjoy these videos.
Awesome as always thanks
Now I just want different shapes of aperture for my camera lenses.
I have learned so much in such a short video!
Personally, I find their circular pupils to look uncanny
Thanks for toute edited reupload 😊
This has plenty of interesting information about cat eyes that I never knew about, thank you so much!
Glad to see your hair comming back well from your cancer treatment. I do like with you doing corrections for this old video we get to see your normal haircut and your current hair growing back
Come for the Hank, stay for the cat😎
From now one, when my eyes hurt from adjusting to a sudden increase in brightness, I'm gonna say; "Ow, my eye sphincters!"
Interesting format. Enjoyable and I appreciate the clarifications.
LOVE THIS
I believe "Ovoid" would be the word you were looking for when you described the Lynx's eye as being "Circular but elongated".
Interestingly, Panasonic's "Lumix" range of cameras use "depth by defocus" for the autofocus. Other systems like Canon's "dual pixel" work by isolating light coming from different angles, which has the effect of restricting which part of the lens it comes from as though you were using a smaller aperture (and hence greater depth of field), effectively giving two different sharp images for which you can compare the parallax - which is zero on the focal plane.
I'm not specifically aware of any animal that uses this latter system, which was in large part motivated by having just the one lens. But it wouldn't surprise me if something similar didn't happen with compound eyes.
"The body is round"
This is fun. I remember watching this episode a while ago and retained much of this information "in my back pocket". Usually, I'm the guy with interesting facts at a party. Yes, my social survival strategy is being "the fun facts guy".
I didn't know you had this channel. ❤ you and your brother. You have helped me through high school and university
The hallmark of scientific thinking is changing your understanding as new data comes in. This new series is great - it shows self-correction as one gets new information, one of the most valuable characteristics of scientific thinking. We all get things wrong sometimes, but only the best of us point out our own mistakes or misunderstandings and work to correct them.
Will they make some additional mistakes in the new videos? Of course! No one can avoid making mistakes. Will there be a third series of additional corrections? We'll see, won't we?
Reruns😂
Great video! 🎉
I like this new series!
Oh im so excited to get all the pins i didnt get
Rip Cameo
Pallas Cats look like The Beast in Jean Cocteau's 1946 B&W "La Belle et La Bete" (Beauty and The Beast) -- or vice versa.
Imagine Bizzare Beasts as your first introduction to a Complexly production, and *this* video your introduction to vlogbrothers, and Hank's regular talking speed. 😊
Love it!
Love this - not only fun but good science to go back and correct yourself!
Noticing that all the Prionailura seem to have short rounded ears too, which is interesting -
You have to get lucky with the right random mutations first.
So the most likely reason they have circular pupils, is because they didn't get the *random* mutations to get the slits.
Can you guys make pdf’s of the info cards the pins come with? I lost one of the cards and I always like to remind myself why these animals are so cool when I put one on before work. I figured it would be nice for others to have them available too. I know I’d buy the trivia pdf for a buck! 😄
If you watched the Manul cat hunt, you now that they are a close-up stealth hunter. They get close to their prey.
Is there a time limit or limited quantity of the pin set? I joined the pin club sometime in season 2 so would love to get these, but the holiday season already tightens the budget. I didn't see anything on the dftba page, so just wanted to make sure. :)
This is awesome! I love seeing these updates. And this channel. Only problem is, I only need 3 (technically 4 because 1 is 2 pins) of the pins! Any chance you could make them an add-on to existing subscriptions?
didnt know this channel exist! quick sub
The original grumpy cat.
Interesting how their relatives are warmer region cats. I love our planet.
a real muppet of an animal
Is there any way to get just the Mola Mola pin? I’ve been supporting since the beginning, so I have no need for the rest of season zero’s pins. I would LOVE to have a complete set with the Mola Mola.
And then there are goats. Square pupils, anyone?
Someone should make a movie about these Manul/Pallas cats, call it "A Cat Called Oto", voiced by Tom Hanks😹, in the memory of CAMEO.
It is Hank Green, Hello, these cats also are like meeting a human brain when you meet them in the wild, I was mocked by one, they also have human brains.
Very hopeful for an updated horse video to disturb people with at parties
0:43 RIP, dear Cameo ❤
Any chance that huge pin bundle could be divided up into four sets? Otherwise love to get all the pens because I did miss some of them.
Silly little guy
I got the sticker for the Pallas cat! I have two whole sticker packs stuck on my PC!
The thumbnail look like he tryna explain to the avatar how the fire nation turned evil
A comment about the phylogeny would have been nice. The obvious guess as to why they have round pupils like the big cats is because the vertical pupil evolved after the small cats split off from the big cats. Said another way, they are a member of Pantherinae not Felinae. I have no idea if that is true, but it seems like the most likely reason given the information in the video. Not every feature of an animal is due to it's environment. Sometimes it is due to it's ancient ancestor's environment and sometimes it is due to random chance.
Edit: it is in Felinae but sharing a sub-family with the fishing cat which also has round pupils, the phylogeny I could find in 15 minutes does not rule out the possibility that it never evolved slotted pupils, although that would imply that feature evolved twice in Felinae, which is no more a stretch than saying reversion to round pupils happened twice in one sub-family especially if you have a pressure towards one and not the other, the one which there is pressure towards would be more likely to evolve multiple times. But my main point stands: the video assumes it evolved round pupils without explaining why the video assumes it has an ancestor with slotted pupils.
colobus (κολοβο) means short or missing, depending on the context. I'm guessing, whoever named them wanted to make note of their short ears... cant imagine anyone thinking of those little beasties as ugly :)
Hi! I am a middleschool building substitute, and the kids have loved the pins I've added to my rotation -- will there be any other "catch up" packs, or another way for me to get the rest of the pins, so that I can wear them day-to-day, and continue to delight the kiddos?
Search the comments for the phrase "and already have the original 12 pins, to get the Mola Mola pin" and you will see that there is hope.
Love the updated vIdeos