The Bear-Sized Beaver That Couldn’t Build A Dam

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Published 2021-01-13
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It’s important to us that you understand how big this beaver was. Just like modern beavers, it was semiaquatic -- it lived both on the land and in the water. The difference is that today’s beavers do a pretty special thing - one that the giant beaver probably didn’t, or couldn’t, do.

Thank you to these paleoartists for allowing us to use their wonderful illustrations:
Julio Lacerda (including the thumbnail for this video!): twitter.com/JulioTheArtist
Ceri Thomas: nixillustration.com/
Fabrizio de Rossi: www.facebook.com/ArtofFabricious/

Produced in collaboration with PBS Digital Studios: youtube.com/pbsdigitalstudios

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References: docs.google.com/document/d/10gSYaXja63_rOvo_BBq7p0…

All Comments (21)
  • PBS Eons: This animal is like it's modern day counterpart, but big. Us: 👁️👄👁️ no way
  • @Clint945
    Almost as big as Eon Dad's biceps!
  • @Jobobn1998
    Blake: "Castoroides were about the size of a small Black Bear--or three-quarters of a me!" FLEXES
  • @jilliebelle
    Would love to see episodes about the evolution of placentas and one about the evolution of grass. I know both of these have been suggested before, just adding my support.
  • @rodchallis8031
    I've had the fortune to see a wetland I grew up near be transformed by beaver. It truly is amazing the positive impact they have on other flora and fauna, water quality and flow control. The stream that runs from the dam used to run high in spring, and dry up in summer. Now it has, give or take, pretty much the same flow rate year round.
  • @Christian_Sims
    This man making great progress in the gym, if anything he's the one evolving. Keep it up💯
  • @eelkev.8547
    Would love to see an episode when and how flora and fauna split up. How did some single cell organisms go in the direction of plants and others developed into animals? I’m sorry if this is an ignorant question
  • @cooolbigguy
    My people (Dene) have stories about giant beavers. Our stories tell us our greatest hero Yamoria who chased down the last giant beavers and put an end to them. You can still see the giant beaver hide remains on Bear Rock in Tulita, Northwest Territories, Canada. This leads me to believe that our people coexisted with the megafauna.
  • Loving how frustrated Blake sounds by the fact that the giant beavers aren’t around anymore
  • @SuperBC1975
    So, the ancient giant beaver did not build dams. I guess for them it was a case of dam if you do, and dam if you don't.
  • @A_Moose
    It's still wierd not hearing "and Steve" at the end of the shoutouts
  • @tmaka2354
    I wish that more megafauna were still around today, it would just make everything way more interesting like, “why are you late for work today? Because a giant beaver was in the idle of the road”
  • @ecurewitz
    man with the biggest muscles discusses the biggest beavers
  • @gabriellong5009
    "Back then, Florida was a mix of forests and swamps." Sounds like it hasn't changed in over a million years...
  • @kinomora-gaming
    "It's definitely extinct now because you'd know if it wasn't" THATS JUST WHAT YOU WANT US TO THINK, PBS!