Why do polar bears hibernate?

Brown and black bears hibernate during winter to conserve energy and stay warm. But the same isn’t true for polar bears. Only pregnant polar bears den up for the colder months. read more

The low metabolism rate is vital for the pregnant females to conserve energy. Polar bears do not go into deep hibernation and few researchers use the term’ dormancy’ to explain the dormant state. During hibernation, the body temperature of polar bears fairly drops from the usual temperature of 98.6 degree Fahrenheit. read more

While polar bears do not enter a proper state of hibernation other species of bear do. However bear hibernation is believed to be very different from the hibernation of other animals. This is mainly because during bear hibernation, bears do do not experience as big a drop in internal temperature as other animals. read more