When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Polar bear - Wikipedia

    en.wikipedia.org/wiki/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).

  3. Ursus (mammal) - Wikipedia

    en.wikipedia.org/wiki/Ursus_(mammal)

    Polar bear Ursus maritimus Phipps, 1774. 2 subspecies. ... There is a very loose dominance hierarchy within bear mating systems due to their solitary nature. [10]

  4. Breeding in the wild - Wikipedia

    en.wikipedia.org/wiki/Breeding_in_the_wild

    The polar bear is an example of a mammal who uses a maternity den, whose locations are influenced by migration movements of this species to the seasonal Arctic pack ices. In particular, the polar bears who breed in Wapusk National Park need to migrate to the Hudson Bay pack ice. [4]

  5. Grizzly–polar bear hybrid - Wikipedia

    en.wikipedia.org/wiki/Grizzly–polar_bear_hybrid

    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 ...

  6. Inuka - Wikipedia

    en.wikipedia.org/wiki/Inuka

    To ease them in, they arrived in the early hours of the morning when the temperature was coolest. Like most zoo animals, one of each sex was brought in for mating and conservation purposes. Anana, a female polar bear caught in the wild, arrived from Canada in 1979. She died in 1999. On 26 December 1990, Sheba gave birth to a 350-gram male cub.

  7. Induced ovulation (animals) - Wikipedia

    en.wikipedia.org/wiki/Induced_ovulation_(animals)

    Many bear species are able to have induced ovulation including the grizzly bear, black bear and polar bear where both the presence of a male and mating itself are requirements for induced ovulation. However, there are some suggestions that mating is not as strict a requirement for ovulation in bears. [18] Japanese black bears are induced ...

  8. Hybrid speciation - Wikipedia

    en.wikipedia.org/wiki/Hybrid_speciation

    For a hybrid form to persist, it must be able to exploit the available resources better than either parent species, which, in most cases, it will have to compete with.For example: while grizzly bears and polar bears may be able to mate and produce offspring, a grizzly–polar bear hybrid is apparently less- suited in either of the parents' ecological niches than the original parent species ...

  9. Bear - Wikipedia

    en.wikipedia.org/wiki/Bear

    The bear family includes the most massive extant terrestrial members of the order Carnivora. [a] The polar bear is considered to be the largest extant species, [42] with adult males weighing 350–700 kg (770–1,540 lb) and measuring 2.4–3 m (7 ft 10 in – 9 ft 10 in) in total length. [43]