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A bear is a large mammal in the family Ursidae of the order Carnivora.
Common characteristics of bears include a short tail, acute senses of smell and hearing, five non-retractable claws per paw, and long, dense, shaggy fur.
Bears have powerful limbs. They are capable of standing up. Their teeth are used for defense and tools. Their claws are used for ripping, digging, and catching.
While many bear species do go into a physiological state called hibernation or winter sleep, it is not true hibernation. Their body temperature drops only a few degrees from normal and they are easily roused.
The average life of the bears is 25-40 years.
Kodiak bears (or Alaskan Brown Bear) are the largest type, and in fact one of the largest extant carnivores. Sun bears (Helarctos malayanus) are the smallest, the average weight being less than that of humans.
Bears are commonly given humanity in modern popular culture.