Giant Beavers were the largest rodents in North America, comparable in size to a bear and dominated ponds with their iron teeth. Although they were massive, they bore a striking resemblance more to a giant muskrat-capybara hybrid than an actual beaver. This episode delves into the mysteries surrounding the true nature of the Giant Beaver.

00:00: Giant Beavers: The Prehistoric Rodents You Didn't Know Existed
01:39: How Big Was Castoroides, Really?
02:52: Extrapolation Errors & Demoting the Beaver Guide
03:39: The Femur Scan Breakthrough (Capybara Comparisons)
05:05: Locomotion & Aquatic Adaptations (Muskrat Tail)
07:01: The Evolution of Swimming & Burrowing (Palaeocastor)
08:29: Miocene Climate Shifts & Wood-Cutting History
09:55: Tooth Structure & Isotope Analysis (Diets Exposed)
12:09: The Truth About Dams and Lodges
14:02: Re-Evolving Away From "Beaver" Features

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