When Beavers Grew to the Size of Bears
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- čas přidán 16. 07. 2024
- Rodents are the most successful group of mammals making up around half of all mammalian species. They owe this success to being very intelligent, having opportunistic diets but also their small size as it allows them to reproduce incredibly quickly. But in the not to distant there are examples of rodents that grew to massive sizes competing with the large animals in their ecosystem. Not many animals demonstrate this like Casteroides a beaver that could grow to the size of a small bear.
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Sources:
www.nature.com/articles/s4159...
www.researchgate.net/publicat...
www.ncbi.nlm.nih.gov/pmc/arti...
link.springer.com/article/10....
www.cmnh.org/CMNH/media/CMNH_...
I love it when things that aren't hippos evolve into hippos.
And hippos turn into whales and everything turns into crabs.
@@brianedwards7142 Crab: "I am inevitable."
what other hippos potamus happened?
@@cro-magnoncarol4017 could you explain that please
@@patriciomunoz6648 everything evolves into crabs eventually apex design broskii
yoooo beavers
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
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.
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)
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
0:28 There is a house in the tree line, these beavers clearly built nicer homes than their modern counterpart
Woodland mansion*
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
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!
Imagine modern beavers having legends about Casteroides the way we have legends about giants and monsters and such
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.
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
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
Fantastic video, I love these focused single species discussions
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 🇩🇪
As an Ohioan, I can confirm we do have big beavers here.
But do beavers in Ohio have teeth?
Imagine being chased by a giant angry beaver in the wood! That would be a cool cryptid told by drunk woodcutters around the fireplace
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
Great video as always but I noticed you included a few different shots of nutrias and not beavers.
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!!
Could you talk about a prehistoric insect/other bug? I love hearing about those, especially the giant ones that used to rule the air.
Finally another video. The month of waiting's worth it. Would love to see more of this
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
One of the best channels of this type on YT.
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
I just thought about these the other day. Thanks for posting!
Always excited to watch.
You're such a legend, i love all of your stuff. Thank you for making it.
Your videos are always incredibly interesting. Great job again.
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
Keep it up I wait eagerly for your uploads very educational and in a way that’s easy and intriguing to learn my
Yeah a new episode!!😁
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
Excellent video thank you for the content!!
I love beavers!
Finally you put the human in for size reference! Thanks so much for that!
I looked forward to a new video upload. Nice!
LOVE your videos!
Thank you for this informative video
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.
I absolutely love your channel, btw.
Sincerely.
You’re the very best palaeontology channel on CZcams, MLM 👍 - that is all.
Mom, there's a new moth light media video!!
Excellent video
Excellent
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
fascinating video as always! giant beavers would have been terrifying
I love this channel
Finally another vid!!❤
Interesting as always
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!
Nice new Video
Verry nice as always :)
Love the channel! We need an explanation for porcupines next lol
*Imagine* if they didn't go extinct, they *could* tamed and be ridden.
I dunno, the beaver probably wouldn't like it.
As a kid I was obsessed with beavers. I want one of these as a pet now.
They make the cutesz sounds ever😅
You telling me the giant beavers from ark wouldn't actually have dams full of wood, pearls, flowers and cementing paste :p
Good video
now i like this channel
Awesome.
Ark taught me not to steal cementing paste from these mofos
I especially love when they leave cementing paste in their dam, good for making my tame saddles
I love when mlm releases a new video. I genuinely stop whatever I'm doing.
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.
4:25 the giant chigüire!
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.
Castaroides a unique prehistoric animal very interesting
Castoroides
Thanks for reminding me of a funny user name on a game i play. Massive Beaver lol.
Dam, what a beaver!
Oh hell yeah
Maybe those extinct bear-sized beavers should be called “bearvers”. 😉
Nice video, although there was a moment when you showed a Myocastor coypus instead of a Beaver.
Beavers are my favorite animal!
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.
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"
nice beaver
Beaver be chomping amen my brother
Canadians are about to have a blast with this one
These guys are awesome in the game Ark
This was dam interesting.
Wynona had a big brown beaver
And she showed it off to all her friends
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
Great video but lots of clips of muskrats and coypu when you were talking about beavers.
*TheGamingBeaver* but yes this video was really cool and I really enjoyed this
Hope u have a good day
Yo mama must have been around in the Ice Age because that's the only time there were bear-sized beavers.
For a second, I read the title as, “when beavers grew to the size of beavers.” And I just went, “wat.”😂
These beaver can dam an ocean
6:30 damn. Really pulled out the dental records
I want one of these.
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
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.
Heard these guys make a lot of cement might've been useful for those cavemen living near metal
will you make a video about Spinosaurus ? They are my favorite dinosaur I'm obsessed with them !
day off AND Moth Light?!
“Rodents of unusual size? I don’t think they exist”
EVERY time : "this specie existed for milions of years but disapered as soon as human arrived, but it is not sure how they went extinct" COME ON !
Rodents of Unusual Size? I don't believe they exist.
Very cool video. Beavers are so very interesting and important. ❤️🦫❤️🦫❤️🦫❤️