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Castoroides (Latin: "beaver" (castor), "like" (oides) [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.
In their natural range in North America, bears and wolves prey on the beavers and keep the population under control. One observer noted that anyone considering importing beavers should also import bears, those being the beavers' natural predators. [4] According to a June 2011 NPR report, 200,000 beavers were living in the area. [6]
Skull of a beaver. Castoridae is a family of rodents that contains the two living species of beavers and their fossil relatives. A formerly diverse group, only a single genus is extant today, Castor. Two other genera of "giant beavers", Castoroides and Trogontherium, became extinct in the Late Pleistocene.
Still, within river corridors, beavers can play a key role in creating natural fire breaks by rewetting meadows and reducing the encroachment of forests, researchers have found.
The Tule River Indian Tribe and state wildlife crews reintroduced nine beavers to their natural habitat in the Sierra. Beavers, back on tribal land after 100 years, could aid California's fragile ...
A group of Canadian beavers and their dam on a river. Communication is highly developed in beaver, including scent marking, vocalization, and tail slapping. Beaver deposit castoreum on piles of debris and mud called scent mounds, which are usually placed on or near lodges, dams, and trails less than a meter from water.
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Beavers can be found in a number of freshwater habitats, such as rivers, streams, lakes and ponds. They are herbivorous, consuming tree bark, aquatic plants, grasses and sedges. Beavers build dams and lodges using tree branches, vegetation, rocks and mud; they chew down trees for building material. Dams restrict water flow, and lodges serve as ...