MarcusForrest t1_j9ma2e5 wrote
Reply to comment by Dirtroads2 in TIL - That avocado seeds are so large because they depended on extinct megafauna to eat and disperse them. by byronhadleigh
- 2.2 m (7.2 feet) from tail to snout
- 100 kg (220 lbs)
- Teeth up to 15 cm (6 inches) long
- Modern beavers have a major impact on forests due to their dams, imagine the impact the Casteroides left! How big their dams would be!
- Could stay underwater for long periods of time thanks to its enlarged lungs
- Interestingly enough, modern beaver brains are (proportionally) larger than Casteroides so it is theorized the ancient Casteroides had less complex thoughts and interacted with their environment a little less
- They probably went extinct during the PleistoceneāHolocene Transition (12,800ā11,500 years ago)
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