The polar bear is not endangered just yet. It is listed as vulnerable, meaning conservation measures must be enforced to prevent the species from becoming endangered.
2 Hours.
Global Warming is melting the ice where they live, and they can only swim for so long.
adult polar bears are 7 feet long and cubs are 3 feet long
Polar bears live for an average of 15 to 18 years.
The gestation period for polar bears is 8 months.
They stay until they're 2 1/2 years old.
Maybe to see how long they are? Or this person could mean, why do we need to measure the population of polar bears. If this the actual question then the answer is basic. They (whoever they may be) need to keep records of polar bear populations in order to declare them on the endangered list. If they go onto the endangered list they can be better looked after by the international community. (Whether the international community cares or not is another question.)
Polar Bears live an average of 15-18 yrs.
yes, the polar bears are related to the brown bear according to fossils long ago
Polar bears are wanderers, especially males, rarely staying in one place for long.
Long years.
Long hair on the bottoms.