They are mammals and have sex in the normal fashion for mammals. The Pregnant Polar Bear may seek out shelter on an Ice Floe ( a sort of mini-berg) failing this they might retreat in Ice Caves. It has been said they will conceive and the embryo will grow while in hibernation, but this does not affect they way they perform the sexual act. Polar Bears are the most aquatic of the non-adaptive Marine Mammals ( excluding fully-waterborne Whales, seals, etc.)
Polar bears are indigenous to the Arctic regions. There are no Polar bears on Antarctica.
they are both mammals
They haven't. Polar bears are now a threatened species. If the polar ice cap goes, then so do the polar bears, as they rely on oceanic ice to secure their food.
The Polar Bears is we're it's at. Go Polar Bears
Depletion of ozone layer causes the ice caps to melt. This affects the polar bears.
The only variances in "look" between Polar Bears and Adult Polar Bears would be based on the gender and age of the bear(s).
Adult male bears.
yes, they are smaller and have not as much hair ;)
polar bears are not like regular bears because adult male polar bears weighs around 350 to 680kg and other regular male bears are different from that.
Once or twice per season
adult polar bears are 7 feet long and cubs are 3 feet long
seals
Yes. They can. They will create what are known as grolars, pizzlys, and many other titles. Their offspring can even reproduce with others of their own. This does not happen with cross-breeds, such as the mule.
Polar bears communicate by vocalizing! Adult polar bears vocailize most when they are agitated or threatened.
Yes. How do you think polar bears reproduce? All male mammals, including polar bears, have sperm to copulate and give rise to more offspring to keep the population going.
there are no different sorts of polar bears, like there are different sorts of cats. There are only the stages of life a polar bear goes through, from cub to adult.
Male bears have no role in the rearing of cubs. In fact, male bears may kill the young if left unprotected.