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Polar bear. The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed. The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb). The species is sexually dimorphic, as ...
Bats hibernating in a silver mine. Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It is most commonly used to pass through winter months – called overwintering.
Polar bear feeding on a seal on an ice floe north of Svalbard, Norway. It is the most carnivorous species. The sloth bear is not as specialized as polar bears and the panda, has lost several front teeth usually seen in bears, and developed a long, suctioning tongue to feed on the ants, termites, and other burrowing insects
Two Polar Bears. The Arctic National Wildlife Refuge is directly connected to Polar Bears. These bears are known for traveling in the region to den and give birth. Nearly 50 of these species migrate along the coast to the refuge in September. These bears extend more than 800 miles (1,300 km) along the coast of Northern Alaska and Canada. Due to ...
Mother bears and their cubs have not had any difficulties hibernating, wildlife officials said. Half-asleep bears — unable to hibernate — seen walking around in Russia, officials say Skip to ...
In 2014, hikers in New Jersey began sharing photos and videos of another bi-pedal bear who came to be known as “Pedals.” Unlike his brethren in West Virginia, Pedals was unable to walk on all ...
The short-story "Bathybia" by Douglas Mawson, published in the book Aurora Australis in 1909, deals with an expedition to the South Pole where the team encounters giant mushrooms and arthropods, and a four-foot-long tardigrade waking from hibernation; this scares the narrator from his sleep, and he realizes it was all a dream. [114]
Torpor is a state of decreased physiological activity in an animal, usually marked by a reduced body temperature and metabolic rate. Torpor enables animals to survive periods of reduced food availability. [1] The term "torpor" can refer to the time a hibernator spends at low body temperature, lasting days to weeks, or it can refer to a period ...