Risultati di ricerca
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 adult females are much smaller. The polar bear is white- or yellowish-furred with black skin and a thick layer of fat.
19 apr 2024 · adult polar bear with cubs. Adult polar bear with cubs (Ursus maritimus). Mating occurs in spring, and implantation of the fertilized ovum is delayed. Including the delay, gestation may last 195–265 days, and one to four cubs, usually two, are born during the winter in a den of ice or snow.
- The Editors of Encyclopaedia Britannica
12 ago 2023 · Weight. 800–1,300 pounds (males), 300-700 (females) Length. 6–9 feet. Habitats. Arctic Ocean, sea ice, and adjacent coastal areas. © WWF-CANADA. Click here to view larger map image. The largest bear in the world and the Arctic's top predator, polar bears are a powerful symbol of the strength and endurance of the Arctic.
Polar bears are considered adults when they are old enough to mate. For females, this is ages 4-6, for males 6-10. By the time they reach adulthood, adult males normally weigh 350-600 kg (775-1,300 lb). Adult females usually weigh 150-295 kg (330-650 lb), though some can be larger.
Majestic creature of the far north, the polar bear is the world's largest terrestrial carnivore. Its Latin name, Ursus maritimus, means 'sea bear': an apt name for this amazing species which spends much of its life in, around, or on the water - predominantly on the sea ice.
A 121-pound seal can provide 8 days worth of energy – but the bear needs to eat much more in order to store up reserves. When there are plenty of seals, adult polar bears only eat the fat, leaving the carcass for scavengers such as foxes, ravens and younger bears.
Polar bears are the largest species of bear in the world. Compared to other bears polar bears have: a long narrow head; a head that is relatively small compared to the body; small, heavily furred ears; claws that are short and strong; canine teeth that are long; and cheek teeth that are sharper.
