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Castoroides (from Latin castor (beaver) and -oides (like) [2]), or the giant beaver, is an extinct genus of enormous, bear-sized beavers that lived in North America during the Pleistocene. Two species are currently recognized, C. dilophidus in the Southeastern United States and C. ohioensis in most of North America.
The mountain beaver (Aplodontia rufa) [Note 1] is a North American rodent.It is the only living member of its genus, Aplodontia, and family, Aplodontiidae. [2] It should not be confused with true North American and Eurasian beavers, to which it is not closely related; [3] the mountain beaver is instead more closely related to squirrels, although its less-efficient renal system was thought to ...
Trogontherium cuvieri grew larger than living beavers , with a skull up to 21 centimetres (8.3 in) in length, but was smaller than Castoroides. The incisors are covered in fine longitudinal grooves, and have a convex enamel face. The cheek teeth are high crowned. The sagittal suture of the skull is flanked by two deep depressions.
Researchers identified the creatures by their “degenerated” color and “extremely long” beak, according to a study.
Where modern beavers have square chisel shaped teeth, Dipoides teeth were rounded. However an excavation of a site that was once a marsh, in Ellesmere Island, showed signs that they dined on bark and young trees, like modern beavers. The excavation seemed to show that, like modern beavers, Dipoides dammed streams. [3]
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After six seasons of being raised by his TV dad on Leave It to Beaver, Mathers got to be a TV dad on Still the Beaver — the Beaver and his soon-to-be ex-wife have two young boys, Corey and ...
A print showing cats and mice from a 1501 German edition of Aesop's Fables. This list of fictional rodents is subsidiary to the list of fictional animals and covers all rodents, including beavers, mice, chipmunks, gophers, guinea pigs, hamsters, marmots, prairie dogs, porcupines and squirrels, as well as extinct or prehistoric species.