Diet & feeding
What do grizzly bears eat?
Grizzly bears are omnivores that eat plants, pine nuts, moths, fish and meat. Their menu changes with the seasons, from…
Family
Ursidae
Every animal we cover from Ursidae, and the articles about them.
5 animals30 articles
Articles
Anatomy & appearance
Do bears have tails?
Every bear species has a tail, usually 3 to 20 cm long and hidden in fur. The giant panda even…
Conservation & population
Are polar bears endangered? Status, population and threats
Polar bears are not endangered: they are Vulnerable on the IUCN Red List and Threatened in the US. About 26,000…
Speed
How fast can a polar bear run?
Polar bears can sprint at about 40 km/h (25 mph) for short distances, but they overheat fast. Grizzlies are quicker,…
Comparisons
Polar bear vs grizzly bear size: which is bigger?
Polar bears are bigger than grizzlies on average: males weigh 350–590 kg against 180–270 kg. Only the biggest coastal Alaskan…
Behaviour
Do polar bears hibernate?
Most polar bears do not hibernate; they hunt seals all winter. Only pregnant females spend winter in a snow den,…
Comparisons
Tiger vs grizzly bear: who would win?
Tigers and grizzly bears live on different continents, so nobody knows who would win. A big Amur tiger and a…
Strength & bite force
How strong is a grizzly bear?
Grizzly bears are powerful diggers and hunters, but their lifting strength and bite force have never been measured. Here is…
Speed
How fast can a polar bear swim?
Polar bears can swim at about 10 km/h (6 mph), but they are built for distance, not speed. One tracked…
Records & rankings
How big is a polar bear? Height, length and weight
Adult male polar bears are about 2.4–2.6 m long, 1–1.5 m tall at the shoulder and weigh 350–600 kg; females…
Adaptations
What color skin do polar bears have?
Under their fur, polar bears have black skin. The fur itself is clear and only looks white because it scatters…
Predators & threats
What eats polar bears?
Adult polar bears have almost no predators apart from people and other polar bears. Cubs are sometimes killed by adult…