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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 ...
A grizzly-polar-bear-hybrid (also named grolar bear, pizzly bear, zebra bear, [1][2] grizzlar, or nanulak) is a rare ursid hybrid that has occurred both in captivity and in the wild. In 2006, the occurrence of this hybrid in nature was confirmed by testing the DNA of a unique-looking bear who had been shot near Sachs Harbour, Northwest ...
Possible hybridisation between different species of bear. An ursid hybrid is an animal with parents from two different species or subspecies of the bear family (Ursidae).Species and subspecies of bear known to have produced offspring with another bear species or subspecies include American black bears, grizzly bears, and polar bears, all of which are members of the genus Ursus.
For example, the panda can weigh around 300 pounds (136 kg) [22] and the male polar bear can weigh from 550-1700 pounds (249 to 771 kg). [23] The range of bear heights can go from the panda who can be 4 feet tall [24] to the polar bear who can be up to 11 feet tall. [25] 20–30 years Around 40 years [26] Photo that includes the bear subspecies ...
Flocke. Flocke on 9 April 2008, the day after her public debut. Flocke (German pronunciation: [ˈflɔkə]) is a female polar bear who was born in captivity at the Nuremberg Zoo in Nuremberg, Germany on 11 December 2007. A few weeks after her birth, she was removed from her mother's care after concerns were raised for her safety.
Debby (1966 – November 17, 2008) was a female polar bear, considered by scholars as the world's oldest.She lived in the Assiniboine Park Zoo in Winnipeg.In August 2008, the Guinness World Records certified her as not only the oldest polar bear, but one of the three oldest individuals ever recorded of all eight bear species.
The key danger for polar bears posed by the effects of climate change is malnutrition or starvation due to habitat loss.Polar bears hunt seals from a platform of sea ice. Rising temperatures cause the sea ice to melt earlier in the year, driving the bears to shore before they have built sufficient fat reserves to survive the period of scarce food in the late summer and early fall.
Despite living in North America, American black bears are not closely related to brown bears or polar bears; genetic studies reveal that they split from a common ancestor 5.05 million years ago (mya). [3] American and Asian black bears are considered sister taxa and are more closely related to each other than to the other modern species of bears.