Adaptations
What are the adaptations of a polar bear?
Two layers of fur, fat up to 10 cm thick, paws as big as dinner plates and a gut built…
Habitat
Sea ice
Meet the animals of sea ice and read what we know about how they live there.
5 animals28 articles
Articles
Adaptations
What are the adaptations of an arctic fox?
The 3 key adaptations of an arctic fox, sorted into structural, behavioural and physiological, with a labelled diagram, myths, a…
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,…
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 usually weigh 350–600 kg and stand about 3 m tall on their hind legs; females weigh…
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? Predators of adults and cubs
Adult polar bears have almost no predators apart from people and other polar bears. Cubs are sometimes killed by adult…
Life cycle & reproduction
Polar Bear Life Cycle – Birth to Death, Stages, Facts, Diagram, Worksheet
In the subject of Biology, Life Cycle of an organism is defined as the series of changes through which that…
Diet & feeding
Do Polar Bears Eat Arctic Foxes – Is Polar Bear Arctic Fox Predator
Polar Bears and Arctic Foxes both live in the Arctic region and some areas may share the same habitat. Since…