Eurasian beaver
Eurasian beavers are one of the largest living species of rodents and are the largest rodent native to Eurasia. They weigh around . In Norway, adult males average while females average , while another study found adults from the same country to average . By the average weights known, the Eurasian beaver appears to be the world's second heaviest rodent behind the capybara, but averaging slightly larger and heavier than the North American beaver. While the largest specimen confirmed on record weighed , the Smithsonian has reported that this species can exceptionally exceed . Typically, the head-and-body length is and the tail length is .
List of mammals of Tibet
The order Rodentia is the largest group of mammals. They have two ever-growing incisors in the upper as well as in the lower jaw and must be kept worn down by gnawing.Lagomorpha comprises rabbits, hares and pikas, which differ from rodents by having four incisors in the upper jaw and strictly herbivore diet.The order Artiodactyla in Tibet are mainly herbivores, and some are economically important as transport animals.The order Perissodactyla in Tibet is only comprised by a single species.There are over 250 species of carnivorans, which are the top predators in the food webs.