When Bats Took Flight
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- Опубликовано: 10 сен 2019
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Bats pretty much appear in the fossil record as recognizable, full-on, flying bats. And they show up on all of the continents, except Antarctica, around the same time. So where did bats come from? And which of the many weird features that bats have, showed up first?
Thanks to Ceri Thomas for the early bat illustrations! Check out more of Ceri's paleoart at / alphynix
Produced in collaboration with PBS Digital Studios: / pbsdigitalstudios
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References: docs.google.com/document/d/1V... 
Наука
The bat-whale connection is, frankly, one of the best things this channel has informed me of.
The bat-whale connection. Greatest band name ever.
Spoilers.
don't whales use eco location aswell?
@@sjkdsfsdf52 Some bats and some whales use echolocation, but this is a convergent trait. The common ancestor of whales did not echolocate, and neither did the common ancestor of bats. The common ancestor of bats and whales did not echolocate.
I wanna see the Vampire Free Willy movie
I would love a video explaining how the platypus evolved to be how it is
Jacob Shirey yes^
I think many scientist would like to know this too!
Everything I’ve heard, says the fossil record of monotremes is really poor😢
I only know of a few, less then 5, members of this group with even partial fossil remains. If anyone has better/more up to date info on them, I would love to be pointed towards it😁
Jacob Shirey What I want to know is whether the bill is a matter of convergent evolution or did these creatures evolve from duck-like birds?
J̅o̅h̅n̅n̅y̅ F̅a̅v̅o̅r̅i̅t̅e̅ I want to know that and why they both lay eggs and nurse their young
See, Timmy, when a duck loves a beaver...
I really like when you guys talk about stuff that we aren't totally sure about. It, first of all, shows that when we are unsure of something, we admit it. But secondly, talking about WHY we aren't sure really brings to light the degree of rigor that is used to figure all of this out.
4:57 - I am glad that you put a disclaimer before the illustration of different hypothesises ("This is simplified example. In reality all would have taken place over millions of years") because it is important for real understanding of evolution.
Well now I’m thinking about flying bears, no sleep for me tonight
you should read bearmageddon.
How about flying whales? Sorry, you'll probably be up all week now ...
Now flying hedgehogs, that would be something!
i think the oatmeal had a comic years ago about a pteradactyl bear
Its the Sea Bears you need to watch out for.
Could you do an episode on ancient monotremes? Giant platypuses and echidnas!
And what other monotremes were there? Platypuses and echidnas are both sooo incredibly weird in their own ways.
+
Cariss Stewart I don’t know! But with the two being so different there has to be a common ancestor and thus probobly many strange species for PBS eons to cover!
(I vaguely remember that maybe) there are not many fossils about their ancestors and they cant say much about them
There were no giant monotremes. There were, however, monotremes in Asia. My own sources don't talk much about them, sadly- so I, too, would be inordinately pleased if PBS Eons made an episode on them.
Edit: My mistake. The Asian one is a Shuothere (it lacked a beak).
One of my favorite bat-related books was Darkwing by Kenneth Oppel. It follows the story of the first bat, and his struggles with being different from his more glider-based kin.
Yessss I remember that book! As well as his Silverwing trilogy.
I was about to post a comment about Darkwing! The Silverwing trilogy is one of my favourites.
I was telling my father about how bats mysteriously appeared on all the continents at once and he said the devil put them there to test our faith 🤦♂️
Why is this so funny 💀💀
@@fart63 thats pretty sad you mean. Thats clear case of people having been brainwashed by religion.
@@mathieuxlaflamme2322 nah I laughed
that's ... a joke ... right?
please?
@@francesvonstackelberg9038 yeah by my experience, its not
Couldn't bats have been active on the day at first and evolved echolocation to avoid competition with birds?
Don't quote me as I'm not a biologist and am just an amateur evolution fan, but it seems like the most likely answer is that both evolved multiple times across multiple lineages. Convergent evolution and whatnot.
Um... there were no "birds" yet.
They would have been competing against the surviving avian dinosaurs that survived the KT extinction event.
@@bigdickpornsuperstar Weren't there early birds back then? I could've sworn there were. Nothing like today's diversity, though. Also, the whole KT event kinda poses a serious challenge for them to evolve around all by itself.
@@bigdickpornsuperstar Modern looking birds have been around since the Cretaceous and most birds that survived the KT event were like them. Several species of birds evolved to become larger predators especially relatively early on but they evolved from smaller flying species and it's not like those kinds of smaller flying birds ceased to exist at the time.
Most mammals were nocturnal, at that time. One of the indicators, for time spent being active in day light, would be current bats eye structure. The type of cones they have in their eyes( these would have or lack color detection based on the timing of activity). Or looking into the genetics of bats, for the signs of color vision being only turned off or absent all together
when the video started i joked to myself that it would be hippos or it would be bears and now that the video is over i think i need to go sit in the corner and think about things
I'm kind of disappointed that she didn't go through what features they share like she did with the primates and shrews
@@namelessjavelin5444 She said they were genetic features, which are very VERY long sequences of A T G and C. I assure you, it wouldn't be very interesting
do you mind if we do an experiment to determine if you have powers of prognostication?
If you don't mind, I will take your continued reading of this as consent to proceed with the test.
In this test, we will have a control question and an experimental question.
Although not conclusive due to being limited to just two questions, it may be enough to warrant further testing.
The two questions will be random in order to not bias you in your answers.
Question 1) Have you known the outcome of other videos, and/or films, before the climax was revealed?
Question 2) What are the next winning Powerball numbers?
Please answer truthfully, and to the best of your abilities, as this is after all, in the interest of science.
@@Drakijy 😂😂💀💀
My two year loves the animations, and I love that she’s learning things that most schools don’t teach in detail. So happy for this channel♥️
The word bat in swedish translates to "fluttering mouse"
Ah convergent language evolution
The Dutch word is vliegmuis, literally flying mouse
I think that’s beautiful
Add Fledermaus to the pile
@@ContinentTurtle vleermuis
Why are all these Europeans thinking bats are mice? Hehe. Copycats!!! Haha. Which one is the original? Hihi.
Ah yes the Fingerbois. Which all fed on a diet of fruit, nuts, insects, and the occasional child.
This comment was brought to you by Sam o Nella
Ayyyyyy
In particular, his video "Top 10 Worst Animal Skeletons", at 4m40s
ruclips.net/video/nV-wPx3fRWE/видео.html
BusterBuizel omg A SAM O NELLA FAN! I found you!!! XDDDDD
Ahh yess, the salmonela guy
Of my 77 subscriptions, Eons is undeniably the most interesting.
Lol subscribe to Sam O' Nella.
You're welcome.
Watched a few videos, most of its content is well known facts or top10s, like countless other channels...
@@Ezullof ???
Depends of what you are into, I have like 7 bells and they are from Eons to and Scotty Kilmer
Napishtim I don’t see a single top 10 vid anywhere?
When i was a kid i thought
The bat was an adult version rat 🤣🦇🐀
metobatmorphis
If animals were really Pokémon
I imagine rats seeing bats and thinking “look mommy! It’s an angel!”
When I was young I thought lizards are babies. Then slamander to crocodile as the adult.
@@innerslothamonggus9070 i wish i had that imagination. i watched documentaries since very very young, so already knew a lot about alot
I think Bats were genetically engineered by the hyper intelligent dinosaurs to perpetually confuse the mammal derived paleontologists of the future.
It's the most logical theory really
* FART SOUND *
It is , most logical.
Michael Southcott mate it’s a common theory don’t act like it’s yours
the longest prank of all geological times ^^
Against what I initially thought, it seems that there are shrews, tenrecs and even hedgehogs who use echolocation. They all are insectivores and especially the shrews resemble bat-ancestors quite a bit. It's hence not inconceivable that echolocation existed prior to flight as we have proof that ground dwelling insectivores have just that. Now, for the one bat that doesn't have echolocation features in it's fossil remains...it is of course possible that the bat rather than being nocturnal was diurnal and hence lost it's echolocation capabilities over time in exchange for, for example, better eyesight. The fact that it's extinct might hint at this not being a very broad survival option. My $0.02
Na. Then again I take a lot of speculations with a grain of it
Insectivora is a wastebasket taxon. Besides, most mammals trace their lineages back to shrewlike animals.
So do fruitbats use echo location?
@@frozenglaicericet-pose6104 At least three kinds have been reported as doing so. Their echolocation seems to be because they roost in dark caves. It isn't as well developed as that of insectivorous bats.
@@jonshaw840 I see what you did there. Have a Cl for your trouble.
Yes, yes, yes I've been begging for this one
Sorry, this is really disappointing
Same. I asked for this about 2 years ago. Cool to know they are closer to whales than us and that flight came first.
What about a video about the evolution of Sea flap flaps? (Rays)
I know that they are even harder to find then sharks because of their lower quantity of teeth, and the rest is cartilage which doesn’t fossilize. But it would be interesting to learn how they got their wings
“Sea flap flaps” haha I love it
Hypothesis #4
The ancestors of bats were large brush and tree dwellers. They hunted insects climbing and hoping after them. This eventually lead to the larger web hands and powered flight like in other theories.
They were Crepuscular hunters, but eventually moved to nocturnal life style due to competition from birds and other animals.
They had a secret weapon to help them hunt those insects as well as make the move from Crepuscular to nocturnal.
Bat ancestors had a very unique and sneaky way to hunt. They used their high pitched sounds to mimic the sounds of the insects they hunted. Luring the insects closer to them as they were hunting made their success rate very high.
Eventually this squeaking during hunting started to return "pings" of the insects. This enabled the predecessors to bats to have larger ranges in their attack strikes which helped in the eventual evolution to powered flight.
As time went on the evolution of flight and echolocation was fine tuned into the tools the modern bats we know today use.
To answer the question... A form of primitive echolocation evolved first, this then was the catalyst for large webbed hands and gliding. Then in tandem, powered flight and true echolocation evolved together benefiting from each other's perks they granted.
This is an interesting hypothesis
Interesting for sure but other nocturnal insectivores do not have these webs, they do have elongated fingers but no interdigital web...
0:55
Anyone wanna make an drinking game out of this? Every time you hear a person in a video say "found in every continent except Antarctica," take a shot
Wait till the Icecaps melt I'm sure they will find all sorts of crazy stuff under there! lol
There is a hell of a lot of Antarctica to archeolog. Apparently all we have to do is get past the ice warriors and over the wall.
The Vega Islands are in Norway near the Arctic. It's the opposite side of the planet...
Arctic != Antarctic.
Vega Island and Vega Archipielago being two different things, one in the arctic and one in antartica is so dumb lmao
en.wikipedia.org/wiki/Vega_(island_in_Norway)
BATS! They responded to our requests for BATS!
Prehistoric animals are incredible to think about. Imagine if some of these were still around
Some are didnt need to evolve much
Neato. Speaking of Wyoming, could you do a video on the fossil rays there? Were they fresh water rays? What was the environment like. Was the topography flatter. How far away were they from the sea in the Eocene?
Now explain why bats are predisposed to fly through Wayne Manor.
Because it's built on top of their hideaway, full of places for them to sneak into and roost, and is probably surrounded by both tons of bugs and fruit trees, because he's rich. That's without even factoring in him attracting them on purpose to test sonar gadgets.
why would Bruce Wayne have sonar gadgets?
@@phoule76 Batman Begins, he used sonar fuckery to escape the cops via bat swarm. Also the Dark Knight, sonar imaging of the city. Also also, night vision a la echolocation. And finally, because it's cool lol
Well, it has to do with the fact that the Waynes are a superstitious, cowardly lot.
BECAUSE I'M BATMAN
Are we sure that bats were nocturnal before they evolved flight? I mean, I assume y'all have evidence to that effect, but it seems to me like it could evolve flight and then expand into a nocturnal niche by competing with other flying insectivores.
But hey, I haven't put in the research y'all have, so the paleontological community probably already thought of that and discarded it for a reason I don't know.
Most mammals were nocturnal from the time they evolved in the Triassic up to the Eocene. It was the only way they could avoid the dinosaurs and terror birds who often preyed upon them.
Nick Malachai well tarnation y’all. No we ain’t. That’s why it’s still a head scratcher.
@@Alusnovalotus I don't appreciate attempts at comedy based on my accent. I'm sorry your vernacular doesn't include a plural form of you.
Nick Malachai or that complete grammar is a thing for you.
I’m sorry if writing it is such an extraordinary task.
@@Alusnovalotus douche
Ever since I read darkwing from the silverwing series I've always been interested in how bats evolved
It’s great to see another person who likes the series
I love the subtle ambient soundtrack of this episode.
Great as always, guys.
I've been asking for this video for a long time! Thankyou
I have seen your request for a while. Congrats and thanks for asking.
Considering how close the molecular clock places the genetic origin of bats to the End-Cretaceous extinction event it could be possible that bat ancestors were experimenting with flight even before the Mesozoic ended, suggesting that there could've been a time when pterosaurs, birds, and mammals were flying at the same relative time! Mesozoic mammals are extremely underrated and need their time to shine! Mesozoic mammal episode pls!!!
Great video, but I would have liked a bit more info about the divergence of microbats and megabats (a.k.a. insectivorous bats and fruit bats). That fact that the latter don't echolocate seems like it should be significant, as is the fact that even though microbats do echolocate, they also have excellent vision (despite the "blind as a bat" idiom). This may suggest a flight-first evolutionary model, with microbats developing echolocation as they adapted to a nocturnal lifestyle. The completely different diets are weird as hell, too. It makes sense that they diverged a very long time ago, when the Chicxulub dust had barely settled. Despite the superficial similarities, microbats and megabats are remarkably different. It wouldn't even surprise me if we were to learn in future that they aren't closely related at all but are just examples of convergent evolution (though I admit it's unlikely).
The convergent idea (the so-called "Flying Primate" hypothesis advocated by Pettigrew) was referenced in the video. Genetic data places the megabats well within the microbats, however. They are most closely related to the mouse-tailed bats, horseshoe bats, Old-world leaf nosed bats, and a few others. All of those can echolocate, which suggests either the megabats lost the ability to echolocate at some point, or the two different groups of "microbats" independently developed echolocation. Considering all but the most primitive fossil bats appear to have been able to echolocate, the former seems more likely.
I don't think it's as unlikely as you imagine it to be. There are too little species of flying mammals around from what I see.
I’m not sure we actually know how the bats diverged
Love that Eons is getting into the Halloween spirit already, also love that terrifying mouse with wings animation hahahah
Her voice is clear and relaxing
It's like an intellectual ASMR😌😌
I agree that she has a great delivery. The enthusiasm level is engaging but not tiring, she doesn't use "vocal fry" like some of the SciShow folks do, and it's clear she knows the subject rather than relying entirely on a prepared script.
“...It’s like intellectual ASMR😌😌” You are the lowest of the low, sound freak.
@@x.p.3574 Technically ASMR is a superpower, you cultureless swine
@@pillowprincess3673 no.
@@x.p.3574 chill yo
In a world full of Kardashians social media and politics, I'm glad this channel exists. I watch these videos all the time even when I'm bored
I love her narration. No nonsense. Pleasant to listen to.
I was so excited to click on this! Bats are one of my favorite animals ❤️
What group Bats belong to? Why the Justice League of course 😂
Lol
A man of culture I see 😂
Justice League=gheyness
Unless they are from Louisville, slugger!
@@numberpirate be nice
@@andrewball1898 Don't mind the butthurt Marvel fanboi 😂
Evolution of trees please.
That would be a long, long, long, episode. It's like asking for an episode of animal evolution.
@@lurking_silhouette5802 that would be like asking about plant evolution, not trees. Sharks are older than trees
That would be a 50 part series lol. Takes more than 20 episodes to talk about...
And GRASS!
So so
Planet good temperature
Plant grow
Plant big
Plant tree
Tree evolve,ez speedrun any%
I just want to say that the fossil specimen at 3:48 is genuinely amazing... I cant get over how well preserved it is. 😮
Wow. Now I have watched all episodes up to this one, and this is the very first time a still-living animal was mentioned that I didn't know of. Colugo?? WTF. How have you escaped my attention, little flying fake-lemur?
Thanks, PBS. I have learned so much, as usual. :D
Yes! How about an episode about colugos'?
Why do the first bats have to be nocturnal when evolving flight? That seems like an unnecessary assumption
Exactly. The ancestorvof the first bats may had been diurnal, and via bigger eyes and then taken over by echolocation they became nocturnal afterwards.
I assume the idea is to avoid competition with birds, but yeah, that is a pretty big assumption.
@@wadespencer3623 Especially if they evolved right around the fall of the dinosaurs - right at the same time modern birds were evolving.
To avoid predators?
It seems to be that most -- perhaps even all -- mammals that either fly or glide are nocturnal. Bats of course, plus flying squirrels, sugar gliders, phalangeridae, and (apparently) all the many species within those groups. I wonder why?
God, I can’t get tired of Eons vids. Or this great educators’ voice!!!!!
It’s entrancing.
Love that you did an episode on this! It's a topic that I've look into a few times before and always came away from it amazed. Bats are one of my absolute favorite creatures.
Thank you, thank you, thank you for this. Bats are some of my favourite critters, and finding out a little something about their origins has made my day
Thank you for making a video of my request on evolution of bats.
What do you want from Bats? From I well know there's no restaurant that makes plate based on Bats' meat
I guess prehistoric bats is like pterosaurs, we know much about their descendants and their biology but don't know their origins or how they gained the power of flight.
Yeah and it's true for flying insects as well. Such innovations are generally incredibly successful, but the evolution of such innovations doesn't seem to be very long, except for birds it seems.
Thing is, many eutherian animals were small in the jurassic and cretassic. that makes fossils of the 'proto-bat' unlikely to be ever found... but we all know that all euterians of today evolved from a shrew-like animal.. so a gliding shrew?
Bats are actually very understudied
I'm a docent at the FMNH, so my favorite part of the Fossil Lake exhibit to show people is our prehistoric bat
Amazing! Wish I could visit it someday :)
Great episode! German: raus, maus, fledermaus - I always thought bats where flying rodents. This was fascinating and well-presented. We need more RUclips channels like this!
They sure look like flying rodents!
Rat, mouse, flying mouse?
Hey guys love the vid! Would you consider doing a video on the evolution of jaws?
Jaws is a movie character and just a regular shark who likes humans which is realy weird they usually find us disgusting
Jaws was really good. Jaws 2 was bad. Jaws 3 was a joke.
@@anidiotwithinternetconnect8011I think they meant jaws as in the body part
@@batcat1736 | I think they understood that (at least I hope so).
@@anidiotwithinternetconnect8011 Now I want Eons to do a video on the evolution of a fictional animal for April Fool's.
The BAT EPISODE finally landed! And it was worth the wait! Thank you Eons!
Fantastic episode, I love the way you are walking us through the origination theories, gives us a framework for thinking about this . Scientific mystery is always exciting 👍
Ahh I can think of some many animals of the past to ask for you guys to do an episode on but right now giant beavers are coming to my mind at the moment and would be so cool to learn a thing or two about them on here! Love this show!
First Monstrum with a video about Vampires and then Eons with one about bats on the same day? I'm echolocating a soft collab!
I love that the video titles inspire my curiosity. I see "when bats took flight" I think, alright sure why are there flying foxes that eat insects.
But flying foxes eat fruit lmao... Unless your talking about bats in general...
Thanks once again for an informative, well presented and incredibly interesting video that whets my appetite for looking into a subject more deeply.
Thank you for doing bats finally! Its been a subject I've wanted on Eons for a long while.
Monotremes would be a good one to tackle next!
Why does the ancestor have to be nocturnal? What if that came after echolocation and flight?
Well there was a nocturnal niche whereas in the day they would have to compete with birds
Why would they evolve echolocation if they weren't nocturnal?
Basal mammals were mostly nocturnal, that's why it's usually hypothesised this way.
Gregory Fenn I’d like to see the arguments made, that the dirt/dust/volcanic cloud was still that significant, that long after the impact. Still much colder, still lacking full sun light... totally on board!
1/ Given that bats appeared around 65MYA, they likely didn't have lany predators, and not much competition.
2/ The idea that the "first mammals" were mostly nosturnal is not really viable there. We're talking about 65MYA, not about the very first mammals - at that point mammals already started to diversify for quite a long time, and some of them were certainly diurnal. And anyway, the idea that they had to be nocturnal is a bit biased, since it's just an idea of how mammals could live in the world of dinosaurs.
I adore these videos, and I value the ten or so minutes of downtime it takes to watch em.
Kallie is my favorite host as well. Although all three are great, really.
This video was so interesting! This topic was something I didnt know I wanted to learn about so I'm thankful for you guys!
Thanks PBS Eons. I have been waiting for this!
I'm currently doing a research essay on the evolution of sensory systems in bats, and the references you've cited are similar to mine so I'm probably on the right track.
dsoma 10 please let us know what you find!🤞
Also, wondering if you have looked into the structure of bat’s eyes? Any evidence of them having/ or had color vision? Basically looking for evidence that could be a carryover from a diurnal phase. My understanding is that nocturnal creatures lack the cones, in the eyes, for color vision
@@jamespearsoniii914 bats tend to have dichromatic vision, some see UV particularly well and in some cases bats actually have better vision than humans just minus the 3rd cone
it seems full nocturnal bats typically lose _UV vision_ but still keep mid range colour vision
research suggests colour helps bats better detect predators, and uv helps detect real food for nectar eating bats
as *pure* echolocation has overlap between food and random objects
and predators with the right adaptations could sit in plane view and not be detected properly
cave bats - general bats
www.eurekalert.org/pub_releases/2018-10/mbae-jhb101618.php
flower seeking bats
phys.org/news/2009-07-vision-eye.amp
八神こう thank you, that’s very interesting!
I’m guessing this adaptation is more common in bats that are active closer to dusk/dawn? If it is fairly uniform across most species, then perhaps there is a better argument for bats or their ancestors not just being nocturnal!
@@jamespearsoniii914 UV vision is more for dusk/dawn
but i updated my previous comment to be a lil more accurate
and included a couple links if u feel like reading a bit more o7
八神こう thanx, I’ll give them a look!
:D I woke up to seeing this in my feed. I'm sure you had a lot of requests for this one but I certainly remember asking for it a while back on the sloth video. It was excellent, thanks a bunch!
Bat and Pangolin are related.
2019: Cool science.
2020: That gave us social distancing.
Oh my goodness, that baby colugo is just the most adorable thing ever and mama is all dressed up in her best colors. What a treat of a picture, I'm thinking of using it as my desktop background.
PBS eons should do a video on the Wallace Line.
and the man him self
6:06 guys, just wanna say that this is the funniest graphic I've ever seen.
Your graphic designer probably has never seen a bat before. So their version of a "rat-dragon" is awesome!
Dude , check out Paulogia on RUclips, his graphics are cool too. And Scotty Kilmer..... . The top right corner has me in stitches.
Yeah it’s pretty bad especially since the drawing of the 2 bats were so good by contrast
It's really hard to find an informative video that doesn't put me to sleep. This one was very interesting and well put. Amazing work! Besides that the subject is totally awesome.
Wow. Now, I've seen some incredibly fascinating videos on this channel, but this one absolutely takes the cake!
Could you make episode about life’s journey through time so the Permian triassic ordovicion all of them and say most of what lived and I know it will half to split in parts but could you still do that
I had to guess it was in the same clade as dogs. my dog’s face looks exactly like a fruitbats 😂
She's got a soothing voice!
As much as I love the idea of hypothesis A, I’m gonna have to go with C since I feel like the shrewlike ultrasound would easily be converted to an echolocation an early bat ancestor could use to navigate its darkened surroundings or even find prey, much like their apparent relatives, the whales. Meanwhile, they go through a brief evolutionary period where they resemble colugos, and boom 55mya we have onychonycterus
The most amazing RUclips channel on earth! Thank you for your great efforts 🙏🏼❤️
I think the timing of it is too convenient to be a coincidence. My theory is that there was a mole 65 million years ago, just walking around doing mole stuff, minding his own business. Then suddenly, a giant meteor impacted the ground nearby and threw him so high in the air that he went into space. Normally, that would kill a mole, but just as he exited the atmosphere, he was struck with a solar flare and bombarded with gamma rays and stuff, which imbued him with superpowers, including flight and echolocation. And with his newly acquired powers, he just flapped his way safely back down to the ground and began to plot a mammalian takeover of the planet. Based on many of the graphic novels I read, these kinds of events are surprisingly common, so I consider it by far the most plausible explanation for the origin of bats.
I enjoyed reading this
"...and how do they fit in the mammal family tree?" Shows bat family in tree. Love you guys =)
I love bats so much. Thank you for making this.
Evolution of cats when?
After bats and before dats.
Eons did a video of it.
If I remember correctly, cats and dogs have a note worthy common ancestor. Short legged, tree climbing, meat eating...
I think the closest living relative is a type of raccoon or at least it’s referred to as a raccoon
I like how this showed up in my recommendation during the Corona Virus epidemic....
Pandemic*
@@themarvellouschannel3032 Every pandemic is an epidemic. It's a subset!
@@broomemike1 this aint math so shut your nerdy mouth
@@aldridgemaeverick8096 *Said every politician making decisions or running for office right now.
Lmao
Fun fact: In French, we call them bald mice. I'm not going to even attempt to justify that but it is what it is: «Chauve-souris». I think in Spanish and Portuguese the name is derived from something meaning "blind mouse" (with sound changes seriously obscuring the origin).
thanks for providing the references, truly a lifesaver!
Ahhhh I want to watch this so bad but I have to finish nutrition notes first 😭😭 . I'll be back as soon as I finish. This'll be my reward
Chelsey Abbott a true nerd is here, congratulations you are amazing
@@JamesTheFoxeArt lol thanks 😂😂 it's true I am a huge nerd
I would like to see a video on the evolution of mammals throughout the Mesozoic era
This is so interesting to think about. Love the content, y'all!
Eons let me just say, thank you so much for this episode, me and others have been asking for it for a while
Funny I always thought bats evolved from Rodents or Moles/shrews, myself. Great stuff that genetic data is so useful for scientific understanding! I think if they evolved around 65 mya it may be that there were a lot of insects after the extinction and fewer predators and other food sources so they rapidly evolved due to a plethora of food. I also think flight first works if their ancestors were Diurnal. Why is everyone assuming the ancestors of bats were noctornal?
Everyone knows the first bat evolved out of the crime and vice of Gotham City.
Truly fascinating! Bats are such amazing creatures. And they’re adorable!
Your channel has been great during the last few weeks.
Can you do a video on Medusa? It's so weird and alien but fascinating
Been waiting on this episode.
I love watching this channel, Thank you!
A video about placental, monotreme, and marsupial mammals would be cool. How/why they might have diverged and why placental mammals seem to have taken over while marsupials are more rare and monotremes are nearly all gone. Also maybe in the same/a different video talking about the ancient fauna of Australia?
Oh yeah. One of my favorite mammals gets its video. Finally!
Now do a video on Hyaenodon please or if you want to do the echolocation theme, the raptorial cetaceans
I second that. Hyaenodontids are awesome.
EYYY, I SUGGESTED THIS EPISODE. Eons, best channel in this dark site.
NOW, I WANT BUTTERFLY EVOLUTION
And do not make me wait 👏👏
There’s an interesting “ it’s okay to be smart” video, on the stages they go through and their genetics!
I want Moth evolution.
In my mind flight has to be first, especially after Kallie so well explained the options. Thanks Kallie!
You are one of my favorite channels, keep up the good work! :)
I had never heard of colugo before, I think I'm going to suggest it on Animalogic.
Whales are mammals in an ocean dominated by fish. Bats are mammals in the air dominated by birds.
ye, cool rite
This is awesome, I love bats very unique creatures.
Awesome video as always.