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The claws were small and semi-retractable, the dewclaw being large, with the second phalanges being less asymmetrical than those of lions, giving the feet a dog-like posture. The part of the humerus closest to the foot was narrow, with the olecranon fossa being strongly vertical.
Many predatory mammals have protractile claws that can partially hide inside the animal's paw, especially the cat family, Felidae, almost all of whose members have fully protractible claws. Outside of the cat family, retractable claws are found only in certain species of the Viverridae (and the extinct Nimravidae). [2] A claw that is ...
Family Ursidae (bears) is the largest of all the land caniforms. Eight species are recognized, divided into five genera. They range from the large polar bear (350–680 kilograms (770–1,500 lb) in males) to the small sun bear (30–60 kilograms (66–132 lb) in males) and from the endangered giant panda to the very common black bear. Common ...
Their front paws are flexible enough to grasp fruit and leaves. Bears' non-retractable claws are used for digging, climbing, tearing, and catching prey. The claws on the front feet are larger than those on the back and may be a hindrance when climbing trees; black bears are the most arboreal of the bears, and have the shortest claws.
Bears have five digits on each dextrous paw, each digit with a long non-retractable claw. The shape of the claw differs between the bear species: black bear claws are strong and curved, which allows them to claw at tree bark; grizzly bear claws are long and straight, ideal for digging, and can be up to 15 cm (6 in) long; [ 59 ] [ 60 ] polar ...
The average female adult bear in New York is typically around 160 pounds and the average male adult bear's weight is around 300 pounds. According to Curtis, some of the bigger ones have weighed ...
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Brown bears have large, curved claws, with the front ones being larger than the back. They may reach 5 to 6 cm (2.0 to 2.4 in) and measure 7 to 10 cm (2.8 to 3.9 in) along the curve. [49] Compared with the American black bear (Ursus americanus), the brown bear has longer and stronger claws, with a blunt curve. [48]