Food The Diet Of Polar Bears example essay topic
Habitat It all begins in late autumn. The short summer is over, and it gets colder every day as the sun slowly disappears a pregnant polar bears starts looking for place to give birth to its cubs. She walks around until she finds a deep snowdrift. There she starts digging her winter den. The female polar bear uses her claws as shovels to move away the snow this can take a few hours and even up to a couple of days. These dens are thirty to fifty feet long.
At the bottom of the tunnel, she makes a small cave. When she is finished digging, she lies down to rest. The drifting snow will close the entrance of the cave and the thick snow will protect her the harsh Artic nights. Then around Christmas or New Year's she will give birth to her cubs. These bears remain in their habitat for about 6 months, by then the cubs are ready to slowly come to play.
The mother will soon start looking for food and will rove the area as the new bears follow. Range polar bear's home range can be enormous, much bigger than any other species of bears. It is believed that a single polar bear can rove across an area as twice as big as the country of Iceland. An Alaskan polar bear was found a home range 45 times the size of Tennessee. Food The diet of polar bears is: walruses, seal, and whale carcasses. Ringed seal is their main food.
Polar bears are true carnivores, which mean that they feed mainly of meat. Sometimes these bears walk around for days and weeks without finding any food. But polar bears can survive for months without food if necessary. Because the blubber in their body that keeps the bear warm also serves a food reserve. The bear's body uses the blubber to get the energy needed for survival.
Offspring Female polar bears are able to breed at the age of five months of age, an average of two cubs are born. The average weight of each bear is two pounds each. Six out of ten cubs die the first year due to starvation. For at least twenty months the cubs drink their mother's milk. Fact: Polar bears do not leave any tracks behind as they roam around.