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Hace 3 días · 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).
Hace 4 días · Learn about the polar bear, the largest and most powerful carnivore on land, and its adaptations, diet, and threats. Find out how climate change is affecting its sea ice habitat and population.
22 de may. de 2024 · Bear, any of eight species of large short-tailed carnivores found in the Americas, Europe, and Asia. The sun bear is the smallest, often weighing less than 50 kg (110 pounds). The largest bear, and the largest land carnivore, is either the polar bear or the Kodiak bear; either can weigh up to 720 kg (1,600 pounds).
27 de may. de 2024 · The polar bear is a large species of bear that is found inhabiting the ice fields in the Arctic Ocean. It is the biggest species of bear in the world (with the exception of the Kodiak brown bears found in Alaska, which can reach similar sizes), with males often weighing in at around 1300 pounds.
7 de may. de 2024 · Polar Bears diverged from one group of brown bears about 150,000 years ago, according to molecular evidence (Lindquist et al 2010; Lan et al. 2022) Modern polar bears rapidly expanded throughout the Arctic since the Late Pleistocene (Lindquist et al 2010) Fossil history.
7 de may. de 2024 · Scientific name means "sea bear" Adapted to sea ice, spending only short periods on land; Thick fat layer and fur to stay warm in extreme Arctic temperatures; An experienced adult catches a seal every 4 to 5 days; Massive weight gain before denning sustains polar bears during extended fasting period (up to 8 months for pregnant females)
7 de may. de 2024 · General Appearance. Largest living bear species. Occasionally exceeds 800 kg (1,764 lb) Head and mouth. Neck is long and very thick. In males, neck is wider than the head. Head elongated but shorter than many other bears. Dentition reflects a strictly carnivorous diet. Slicing teeth (carnassials) well-developed for eating flesh.
