Before they reach 25 years old, most adults die.
Due to the absence of human development in its remote habitat, it retains more of its original range than any other.
Starving bear near Svalbard The are most profound in the southern part of the polar bear's range, and this is indeed where significant degradation of local populations has been observed.
When they get too warm, they will dive into the cold ocean to cool off.
Greenland Denmark Polar bear standing between two ice floes.
Cubs may hum while nursing.