Beaver dams can be impressively large, but many are really poorly designed. I saw one once that almost crossed an approx 2m rivulet, then turned downstream for 4-5m. Research has shown that they use a very simple algorithm: when you hear water trickling, dump sticks and mud on top until it stops. They will do this to a tape player with a tape of trickling water. Btw, they build dams not only to get deep enough water for lodges, but to extend the water to trees they want to fell, so they can escape to the water if disturbed, and float chunks of branches to the lodge for winter feed.
Perhaps dam building started with beavers using natural debris piles as shelter and a food source that they began repairing. From there the behavior could have expanded to extending cavities to hibernate in. Finally, the repair and extension of naturally occurring dams could have transition creation of new dams.
I agree most look like they were built by an amateur, but some actually look almost human in there shape. I seen a beaver dam once wedged between rock cliffs on both sides it kinda looked like the hoover dam, Was 25-30 ft tall atleast. i was very impressed it was the first time i seen rocks used in beaver dams.
it could have been washed out by a flood and then repaired where most of the debris ended up they're not necessarily planning ahead. just stuffing the hole they also won't use old sticks. if you remove a beaver dam they'll source new sticks even if you put the old sticks right next to where you removed the dam (thx Post10)
Have you ever visited a hydro electric facility? I'm not sure where exactly the average dam size lands but considering how massive we build those it has to bring it up quite a bit.
@@stevenkies802 yeah that's true. And you're not from France, which also helps. Bit unfortunate you're technically British though (you're part of the British empire)
I just love hearing about ancient animals that were similar to ones we have today. Like we're all used to house cats being the same sort of animal as a lion but it's always cool to hear that something like a beaver used to have a relative the size of a bison.
I voted in a poll for Castoroides to be the state fossil of my home state of Minnesota last year. I doubt the legislators care enough to go through the trouble of passing it into law (even though basically every other state has a state fossil), but it would be awesome if they do.
Few videos bring me such calmness and joy like yours, Moth. And I learned that rodents count for a whopping half of all the mammalian species. Thats a lot. Thanks for the entertaining knowledge.
Really nice video! But you often showed nutrias while talking about beavers. Which are also semi aquatic but not closely related to beavers. But that’s the only thing I can point out. I really enjoy your videos keep it up!!
It's so fascinating to think about all of the amazing animals that the early humans in North America encountered. Not just these cool giant beavers, but also mammoths, mastodons, giant sloths, stag-moose, saber-toothed cats, American lions, American cheetahs, dire wolves and so many others. So sad that they all went extinct before our own time.
Yes largely do to the comet impact at the end of the ice age and the subsequent climate, flooding, fires and insane landscape change that followed. It's insane.
“Well would you look at all this water in need of a large semi aquatic herbivore. Time to become Mighty Mouse.” -The prehistoric extinct rodents of north and South America
I would love to see a video about cubas strange wildlife in history such as the barn owl who was the size of an eagle and couldn’t fly or the giant snakes
You should put stickers on your channel shop if possible, would love to have some and support the channel! Love your videos! Very interesting content. Keep up the great work!
Even regular sized Beavers can make lethal bites with their strong jaws. Imagine the bite force of a beaver that size. Bet even bears thought twice before engaging in combat.
Trogontherium was actually similar in size to the modern beaver, but had a relatively large head. Because the head was one of the first things they found, they assumed the beaver must have been gigantic. So European Giant Beaver is a bit of a misnomer for the Trogontherium.
This animal would actually have benefitted from a warming climate, given its dependence on shallow, vegetated habitats; North America-and the world as a whole-actually became WETTER overall (outside of the Southwest), with increased precipitation, due to the end of the last ice age, thus actually INCREASING available Casteroides habitat.
Hell yeah beavers! I live in Oregon, where our state animal is the beaver, and I went to Oregon State University, whose mascot is the beaver. Love those funky little lumberjacks
DRINKING GAME!!! Take a sip of your drink when there is: - a time lineage - a genetic tree - a new illustration - a size comparison Take a shot when: - the narrator says "however"
08:15 knowing our skills, I consider the same space time a very conclusive piece of evidence. If we shared any habitat with them, we sure did hunt them. In pre-history, it would have been silly and wasteful not to. great video
there is more conclusive evidence for a non-human induced extriction event for the younger dryas boundary (end of last ice age). humans numbered some 5-10 million people over the entire world, while there were many more millions of megafauna, bears and mammoth species the size of houses. it is more likely the clovis people that went exctinct around the same time suffered some similar fate to this megafauna, be it volcanic or meteor impact that caused massive floods. the "overkill" hypothesis just makes no sense with new evidence these days.
Man, did Ark get it wrong; it’s still a cool Megafauna, though. I’ve been into all these ancient creature since I was little; it’s awesome you put these vids out.
I’ve seen beavers swimming over 4 foot long. Massive trees that have been downed by a beaver at least 4 feet up the tree. There’s still some big fucking beavers out there that I wouldn’t want to mess with
Rodents are placental mammals of the order Rodentia, there are a large number of species classified within thirty-eight extant families, twenty-one superfamilies, and three suborders, rodents are native everywhere in the world, with the exception of Antarctica, the three main groups of rodents are the suborders Caviomorpha (Cavy-Like Rodents), Sciuromorpha (Squirrel-Like Rodents), and Myomorpha (Mouse-Like Rodents), the cavy-like rodents (suborder Caviomorpha) are divided into ten extant superfamilies, Ctenodactyloidea (Gundis and Laotian Rockrat) with the families Diatomyidae (Laotian Rockrat) and Ctenodactylidae (Gundis), Petromuroidea (Dassie Rat and Fossil Relatives) with only the family Petromuridae (Dassie Rat), Phiomyoidea (Cane Rats and Fossil Relatives) with only the family Thryonomyidae (Cane Rats), Bathyergoidea (Molerats and Fossil Relatives) with only the family Bathyergidae (Molerats), Hystricoidea (Old World Porcupines and Fossil Relatives) with only the family Hystricidae (Old World Porcupines), Octodontoidea (Degus, South American Rockrats, and Spiny Rats) with the families Octodontidae (Degus and Spiny Rats) and Echimyidae (Spiny Rats), Chinchilloidea (Chinchillas, Viscachas, Chinchilla Rats, and Viscacha Rats) with the families Abrocomidae (Chinchilla Rats and Viscacha Rats) and Chinchillidae (Chinchillas and Viscachas), Erethizontoidea (New World Porcupines and Fossil Relatives) with only the family Erethizontidae (New World Porcupines), Myocastoroidea (Nutria, Hutias, and Tuco-Tucos) with the families Ctenomyidae (Tuco-Tucos), Capromyidae (Hutias), and Myocastoridae (Nutria), and Cavioidea (Cavies, Agoutis, Acouchis, Pacas, and Pacarana) with the families Dinomyidae (Pacarana), Caviidae (Cavies), Cuniculidae (Pacas), and Dasyproctidae (Agoutis and Acouchis), the squirrel-like rodents (suborder Sciuromorpha) are divided into seven extant superfamilies, Aplodontioidea (Mountain Beaver and Fossil Relatives) with only the family Aplodontiidae (Mountain Beaver), Gliroidea (Dormice and Fossil Relatives) with only the family Gliridae (Dormice), Anomaluroidea (Anomalures) with the families Zenkerellidae (Flightless Anomalure) and Anomaluridae (Flying Anomalures), Pedetoidea (Springhares and Fossil Relatives) with only the family Pedetidae (Springhares), Sciuroidea (Squirrels and Fossil Relatives) with only the family Sciuridae (Squirrels), Castoroidea (Beavers and Fossil Relatives) with only the family Castoridae (Beavers), and Geomyoidea (Gophers, Pocket Mice, Kangaroo Rats, and Kangaroo Mice) with the families Geomyidae (Gophers) and Heteromyidae (Pocket Mice, Kangaroo Rats, and Kangaroo Mice), and the mouse-like rodents (suborder Myomorpha) are divided into four extant superfamilies, Platacanthomyoidea (Oriental Dormice and Fossil Relatives) with only the family Platacanthomyidae (Oriental Dormice), Dipodoidea (Jerboas, Kopatels, Zokors, Bamboo Rats, and Grawes) with the families Spalacidae (Kopatels, Zokors, Bamboo Rats, and Grawes) and Dipodidae (Jerboas), Cricetoidea (Hamsters, Lemmings, Muskrats, Voles, Jumping Mice, Birch Mice, New World Mice and Rats, and Mouselike Hamsters) with the families Calomyscidae (Mouselike Hamsters), Cricetidae (Hamsters, Lemmings, Muskrats, and Voles), Zapodidae (Jumping Mice and Birch Mice), and Sigmodontidae (New World Mice and Rats), and Muroidea (Old World Mice and Rats, Gerbils, Jirds, Sand Rats, Link Rat, Spiny Mice, Brush-Furred Rats, Rudd’s Mouse, Pouched Rats, African Rock Mice, Climbing Mice, Fat Mice, Gerbil Mouse, Delany’s Mouse, Nikolaus’s Mouse, White-Tailed Rat, Karoo Mouse, Togo Mouse, Vlei Rats, Groove-Toothed Rats, Whistling Rats, Maned Rat, and Malagasy Rodents) with the families Muridae (Old World Mice and Rats), Gerbillidae (Gerbils, Jirds, Sand Rats, Link Rat, Spiny Mice, Brush-Furred Rats, and Rudd's Mouse), Cricetomyidae (Pouched Rats, African Rock Mice, Climbing Mice, Fat Mice, Gerbil Mouse, Delany’s Mouse, Nikolaus’s Mouse, White-Tailed Rat, Karoo Mouse, Togo Mouse, Vlei Rats, Groove-Toothed Rats, Whistling Rats, and Maned Rat), and Nesomyidae (Malagasy Rodents).
Very informative. People like to blame Humans for the mega fauna's demise or disappearance. I would argue that post-ice age the conditions that were favorable to them changed and they could not adapt and survive. I'm positive Humans hunted them but not to extinction without other factors at play.
Yeah, but we're not post ice-age, we're still in an ice-age, simply in a period of transition between two large glaciations. These transitions periods happened several times during the Ice Age, and there was no sudden disparition of megafauna. Also, we do see a correlation between the arrival of humans, and the disappearance of megafauna, everywhere except in Africa where humans have evolved, strange pattern if we caused no exctinction ^^' Sure, the climate change certainly helped to fragilize the ecosystem, but humans probably had a role too ^^
I love how relaxing and entertaining this channel is
yea one of my favorite channels...its brilliant
Love watching these videos as I settle into bed
It was a _dam_ good video!
Giant beavers?? Only in Ohio bruh🤦♂️
Pure truth.
Beaver dams can be impressively large, but many are really poorly designed. I saw one once that almost crossed an approx 2m rivulet, then turned downstream for 4-5m. Research has shown that they use a very simple algorithm: when you hear water trickling, dump sticks and mud on top until it stops. They will do this to a tape player with a tape of trickling water. Btw, they build dams not only to get deep enough water for lodges, but to extend the water to trees they want to fell, so they can escape to the water if disturbed, and float chunks of branches to the lodge for winter feed.
Perhaps dam building started with beavers using natural debris piles as shelter and a food source that they began repairing. From there the behavior could have expanded to extending cavities to hibernate in. Finally, the repair and extension of naturally occurring dams could have transition creation of new dams.
Yeah those stupid idiot beavers are horrible engineers
I agree most look like they were built by an amateur, but some actually look almost human in there shape. I seen a beaver dam once wedged between rock cliffs on both sides it kinda looked like the hoover dam, Was 25-30 ft tall atleast. i was very impressed it was the first time i seen rocks used in beaver dams.
it could have been washed out by a flood and then repaired where most of the debris ended up
they're not necessarily planning ahead. just stuffing the hole
they also won't use old sticks. if you remove a beaver dam they'll source new sticks even if you put the old sticks right next to where you removed the dam (thx Post10)
@@redhammer5783 homie they are literally beavers
No matter what species or group is talked about on this channel, your content is of excellent quality and very fun to watch, keep it up!
Definitely interested in hearing about more animals from the ice age like the larger Jaguars. Thanks for the video!
This is the first I heard of them, now I’m curious
The real grim reaper
Eeyup
If Castoroides were able to build dams, they would probably be able to build them as big as most human dams.
Have you ever visited a hydro electric facility? I'm not sure where exactly the average dam size lands but considering how massive we build those it has to bring it up quite a bit.
God Damn!!!!😯😯
Don't think so, there's a limit to what wood and mud can do.
@Brandon Letzco then you can say that beavers of today can build human size dams
@Brandon Letzco fax
yoooo beavers
As a Canadian I need this.
You already have geese, meese and Quebecoise, do you really want another menace?
@@FeeshUnofficial Those aren't menaces, those are national treasures. Spoken a proud Quebecoise.
@@stevenkies802 ah well you see: French (I am biased, I am European)
@@FeeshUnofficial No problem. Actually Quebecoise are a bit distinct from European French due to intermarriage with native Americans.
@@stevenkies802 yeah that's true. And you're not from France, which also helps. Bit unfortunate you're technically British though (you're part of the British empire)
0:28 There is a house in the tree line, these beavers clearly built nicer homes than their modern counterpart
Woodland mansion*
there are a lot of similar channels on YT but yours is the best mr moth man . always on topic and well present with nice visuals
Fantastic video, I love these focused single species discussions
I just love hearing about ancient animals that were similar to ones we have today.
Like we're all used to house cats being the same sort of animal as a lion but it's always cool to hear that something like a beaver used to have a relative the size of a bison.
That filled the same ecological niche as hippos.
Bison are much bigger than this beaver relative would have been.
Imagine modern beavers having legends about Casteroides the way we have legends about giants and monsters and such
Great video as always but I noticed you included a few different shots of nutrias and not beavers.
I voted in a poll for Castoroides to be the state fossil of my home state of Minnesota last year. I doubt the legislators care enough to go through the trouble of passing it into law (even though basically every other state has a state fossil), but it would be awesome if they do.
Expect nothing less from such sedentary desk-bound humanoid PIGS
Few videos bring me such calmness and joy like yours, Moth. And I learned that rodents count for a whopping half of all the mammalian species. Thats a lot.
Thanks for the entertaining knowledge.
I love and respect your videos thank you
Could you talk about a prehistoric insect/other bug? I love hearing about those, especially the giant ones that used to rule the air.
One of the best channels of this type on YT.
You’re the very best palaeontology channel on UA-cam, MLM 👍 - that is all.
Really nice video! But you often showed nutrias while talking about beavers. Which are also semi aquatic but not closely related to beavers. But that’s the only thing I can point out. I really enjoy your videos keep it up!!
It's so fascinating to think about all of the amazing animals that the early humans in North America encountered. Not just these cool giant beavers, but also mammoths, mastodons, giant sloths, stag-moose, saber-toothed cats, American lions, American cheetahs, dire wolves and so many others. So sad that they all went extinct before our own time.
Yes largely do to the comet impact at the end of the ice age and the subsequent climate, flooding, fires and insane landscape change that followed. It's insane.
Finally another video. The month of waiting's worth it. Would love to see more of this
Keep it up I wait eagerly for your uploads very educational and in a way that’s easy and intriguing to learn my
Gonna sleep soundly to the thought of giant Capybaras roaming my backyard at some point in time.
But imagine the hats we could make!
Giant, at least larger than living, capybaras did roam the southern areas of North America at the same time as the giant beavers.
Where do you live, they only roamed south america ?
@@chheinrich8486 Paraguay 🇵🇾
@@meatlove6620 greetings from germany 🇩🇪
“Well would you look at all this water in need of a large semi aquatic herbivore. Time to become Mighty Mouse.”
-The prehistoric extinct rodents of north and South America
Your videos are always incredibly interesting. Great job again.
Always excited to watch.
You're such a legend, i love all of your stuff. Thank you for making it.
I would love to see a video about cubas strange wildlife in history such as the barn owl who was the size of an eagle and couldn’t fly or the giant snakes
As an Ohioan, I can confirm we do have big beavers here.
But do beavers in Ohio have teeth?
You should put stickers on your channel shop if possible, would love to have some and support the channel! Love your videos! Very interesting content. Keep up the great work!
Imagine being chased by a giant angry beaver in the wood! That would be a cool cryptid told by drunk woodcutters around the fireplace
Mom, there's a new moth light media video!!
I just thought about these the other day. Thanks for posting!
Yeah a new episode!!😁
I absolutely love your channel, btw.
Sincerely.
Beautiful. What’s the background music? Does anybody have the track title for me?
Castoroides also known as the giant beaver, is an extinct genus of the enormous bear-sized beavers that lived in North America during the Pliesocene.
I'll finish your comment; 'Wikipedia'.
@@michaelanderson7715 ok
fascinating video as always! giant beavers would have been terrifying
I love beavers!
As a kid I was obsessed with beavers. I want one of these as a pet now.
They make the cutesz sounds ever😅
Excellent video thank you for the content!!
Ark taught me not to steal cementing paste from these mofos
Excellent
I looked forward to a new video upload. Nice!
I love when mlm releases a new video. I genuinely stop whatever I'm doing.
I thought the giant beaver died out in the 80s, I think I saw one on a German language film on VHS my friend's dad kept in the attic.
LOVE your videos!
Nice video, although there was a moment when you showed a Myocastor coypus instead of a Beaver.
Excellent video
Even regular sized Beavers can make lethal bites with their strong jaws. Imagine the bite force of a beaver that size. Bet even bears thought twice before engaging in combat.
Imagine being able to say you're an expert on massive beavers😏
There use to be huge beavers in north america, now you can find only small wet beavers
gimp
Trogontherium was actually similar in size to the modern beaver, but had a relatively large head. Because the head was one of the first things they found, they assumed the beaver must have been gigantic. So European Giant Beaver is a bit of a misnomer for the Trogontherium.
But still at least 2 to 3 Times the size of eurasian beavers
Wynona had a big brown beaver
And she showed it off to all her friends
Thank you for this informative video
Very cool video. Beavers are so very interesting and important. ❤️🦫❤️🦫❤️🦫❤️
I especially love when they leave cementing paste in their dam, good for making my tame saddles
You telling me the giant beavers from ark wouldn't actually have dams full of wood, pearls, flowers and cementing paste :p
Did the American beaver and European beaver evolve the ability to build dams together or is it convergent?
I love this channel
But was there beaver sized bears?
Love the channel! We need an explanation for porcupines next lol
Finally another vid!!❤
Nice new Video
Verry nice as always :)
Castaroides a unique prehistoric animal very interesting
Castoroides
Does it pull up? Or welcome us to the after party?
This animal would actually have benefitted from a warming climate, given its dependence on shallow, vegetated habitats; North America-and the world as a whole-actually became WETTER overall (outside of the Southwest), with increased precipitation, due to the end of the last ice age, thus actually INCREASING available Casteroides habitat.
*Imagine* if they didn't go extinct, they *could* tamed and be ridden.
I dunno, the beaver probably wouldn't like it.
Hell yeah beavers! I live in Oregon, where our state animal is the beaver, and I went to Oregon State University, whose mascot is the beaver. Love those funky little lumberjacks
Maybe those extinct bear-sized beavers should be called “bearvers”. 😉
Interesting as always
Beaver be chomping amen my brother
2:57 off topic: How come most mammal modern families shaped around 25 mio years ago (and not earlier)?
Probably change in environment wiping out the earlier ones which were often convergently very similar
Beavers are cute.
DRINKING GAME!!!
Take a sip of your drink when there is:
- a time lineage
- a genetic tree
- a new illustration
- a size comparison
Take a shot when:
- the narrator says "however"
4:25 the giant chigüire!
Beavers are my favorite animal!
Thanks for reminding me of a funny user name on a game i play. Massive Beaver lol.
Please turn off mid-roll ads they ruin your content which I love immensely.
08:15 knowing our skills, I consider the same space time a very conclusive piece of evidence. If we shared any habitat with them, we sure did hunt them. In pre-history, it would have been silly and wasteful not to.
great video
there is more conclusive evidence for a non-human induced extriction event for the younger dryas boundary (end of last ice age). humans numbered some 5-10 million people over the entire world, while there were many more millions of megafauna, bears and mammoth species the size of houses. it is more likely the clovis people that went exctinct around the same time suffered some similar fate to this megafauna, be it volcanic or meteor impact that caused massive floods. the "overkill" hypothesis just makes no sense with new evidence these days.
Canadians are about to have a blast with this one
You know wh at drugs the beavers took to get so big?
*Castoroids*
Heard these guys make a lot of cement might've been useful for those cavemen living near metal
6:30 damn. Really pulled out the dental records
Me: No way there's a bear-sized beaver!
Video: a fossil from *Ohio*
Me: Understandable, have a nice day...
*TheGamingBeaver* but yes this video was really cool and I really enjoyed this
Hope u have a good day
Great video but lots of clips of muskrats and coypu when you were talking about beavers.
will you make a video about Spinosaurus ? They are my favorite dinosaur I'm obsessed with them !
Man, did Ark get it wrong; it’s still a cool Megafauna, though. I’ve been into all these ancient creature since I was little; it’s awesome you put these vids out.
I’ve seen beavers swimming over 4 foot long. Massive trees that have been downed by a beaver at least 4 feet up the tree. There’s still some big fucking beavers out there that I wouldn’t want to mess with
Ah yes, bison capybara
Rodents are placental mammals of the order Rodentia, there are a large number of species classified within thirty-eight extant families, twenty-one superfamilies, and three suborders, rodents are native everywhere in the world, with the exception of Antarctica, the three main groups of rodents are the suborders Caviomorpha (Cavy-Like Rodents), Sciuromorpha (Squirrel-Like Rodents), and Myomorpha (Mouse-Like Rodents), the cavy-like rodents (suborder Caviomorpha) are divided into ten extant superfamilies, Ctenodactyloidea (Gundis and Laotian Rockrat) with the families Diatomyidae (Laotian Rockrat) and Ctenodactylidae (Gundis), Petromuroidea (Dassie Rat and Fossil Relatives) with only the family Petromuridae (Dassie Rat), Phiomyoidea (Cane Rats and Fossil Relatives) with only the family Thryonomyidae (Cane Rats), Bathyergoidea (Molerats and Fossil Relatives) with only the family Bathyergidae (Molerats), Hystricoidea (Old World Porcupines and Fossil Relatives) with only the family Hystricidae (Old World Porcupines), Octodontoidea (Degus, South American Rockrats, and Spiny Rats) with the families Octodontidae (Degus and Spiny Rats) and Echimyidae (Spiny Rats), Chinchilloidea (Chinchillas, Viscachas, Chinchilla Rats, and Viscacha Rats) with the families Abrocomidae (Chinchilla Rats and Viscacha Rats) and Chinchillidae (Chinchillas and Viscachas), Erethizontoidea (New World Porcupines and Fossil Relatives) with only the family Erethizontidae (New World Porcupines), Myocastoroidea (Nutria, Hutias, and Tuco-Tucos) with the families Ctenomyidae (Tuco-Tucos), Capromyidae (Hutias), and Myocastoridae (Nutria), and Cavioidea (Cavies, Agoutis, Acouchis, Pacas, and Pacarana) with the families Dinomyidae (Pacarana), Caviidae (Cavies), Cuniculidae (Pacas), and Dasyproctidae (Agoutis and Acouchis), the squirrel-like rodents (suborder Sciuromorpha) are divided into seven extant superfamilies, Aplodontioidea (Mountain Beaver and Fossil Relatives) with only the family Aplodontiidae (Mountain Beaver), Gliroidea (Dormice and Fossil Relatives) with only the family Gliridae (Dormice), Anomaluroidea (Anomalures) with the families Zenkerellidae (Flightless Anomalure) and Anomaluridae (Flying Anomalures), Pedetoidea (Springhares and Fossil Relatives) with only the family Pedetidae (Springhares), Sciuroidea (Squirrels and Fossil Relatives) with only the family Sciuridae (Squirrels), Castoroidea (Beavers and Fossil Relatives) with only the family Castoridae (Beavers), and Geomyoidea (Gophers, Pocket Mice, Kangaroo Rats, and Kangaroo Mice) with the families Geomyidae (Gophers) and Heteromyidae (Pocket Mice, Kangaroo Rats, and Kangaroo Mice), and the mouse-like rodents (suborder Myomorpha) are divided into four extant superfamilies, Platacanthomyoidea (Oriental Dormice and Fossil Relatives) with only the family Platacanthomyidae (Oriental Dormice), Dipodoidea (Jerboas, Kopatels, Zokors, Bamboo Rats, and Grawes) with the families Spalacidae (Kopatels, Zokors, Bamboo Rats, and Grawes) and Dipodidae (Jerboas), Cricetoidea (Hamsters, Lemmings, Muskrats, Voles, Jumping Mice, Birch Mice, New World Mice and Rats, and Mouselike Hamsters) with the families Calomyscidae (Mouselike Hamsters), Cricetidae (Hamsters, Lemmings, Muskrats, and Voles), Zapodidae (Jumping Mice and Birch Mice), and Sigmodontidae (New World Mice and Rats), and Muroidea (Old World Mice and Rats, Gerbils, Jirds, Sand Rats, Link Rat, Spiny Mice, Brush-Furred Rats, Rudd’s Mouse, Pouched Rats, African Rock Mice, Climbing Mice, Fat Mice, Gerbil Mouse, Delany’s Mouse, Nikolaus’s Mouse, White-Tailed Rat, Karoo Mouse, Togo Mouse, Vlei Rats, Groove-Toothed Rats, Whistling Rats, Maned Rat, and Malagasy Rodents) with the families Muridae (Old World Mice and Rats), Gerbillidae (Gerbils, Jirds, Sand Rats, Link Rat, Spiny Mice, Brush-Furred Rats, and Rudd's Mouse), Cricetomyidae (Pouched Rats, African Rock Mice, Climbing Mice, Fat Mice, Gerbil Mouse, Delany’s Mouse, Nikolaus’s Mouse, White-Tailed Rat, Karoo Mouse, Togo Mouse, Vlei Rats, Groove-Toothed Rats, Whistling Rats, and Maned Rat), and Nesomyidae (Malagasy Rodents).
Where is my evidence?
Very informative. People like to blame Humans for the mega fauna's demise or disappearance. I would argue that post-ice age the conditions that were favorable to them changed and they could not adapt and survive. I'm positive Humans hunted them but not to extinction without other factors at play.
Yeah, but we're not post ice-age, we're still in an ice-age, simply in a period of transition between two large glaciations. These transitions periods happened several times during the Ice Age, and there was no sudden disparition of megafauna.
Also, we do see a correlation between the arrival of humans, and the disappearance of megafauna, everywhere except in Africa where humans have evolved, strange pattern if we caused no exctinction ^^'
Sure, the climate change certainly helped to fragilize the ecosystem, but humans probably had a role too ^^
Castor oil? Or castoreum?
Good video
Dam, what a beaver!
For a second, I read the title as, “when beavers grew to the size of beavers.” And I just went, “wat.”😂
Rodents of Unusual Size? I don't believe they exist.
Oh hell yeah