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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).
19 de abr. de 2024 · Learn about the polar bear, the largest and most powerful carnivore on land, that lives in the Arctic region and feeds on seals. Find out how climate change, hunting, and human activities affect its survival and conservation.
25 de abr. de 2024 · Take a closer look at the incredible lives of polar bears and kodiak bears in this 30-second video. Discover their unique adaptations, the challenges they face, and the crucial conservation...
30 de abr. de 2024 · Genus: Ursus — bears. Species: Ursus maritimus — polar bear, white bear, sea bear. Head/Body Length. Female: 200 cm (6 ft) Male: 250 cm (8.2 ft) Tail Length. 76–127 mm (3–5 in) Weight. Female: typically 150–350 kg (330–770 lb) Male: typically 350–650 kg (775–1,430 lb); very large males can weigh to 800 kg (1,760 lb ...
Hace 3 días · 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.
Hace 3 días · 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
12 de abr. de 2024 · Polar bears ( Ursus maritimus ) are one of 4 marine mammal species managed by the U.S. Department of Interior. The USGS Alaska Science Center leads long–term research on polar bears to inform local, state, national and international policy makers regarding conservation of the species and its habitat.
