Polar bears in trouble
Melting ice is bad news for polar bears that live in northern Alaska.
![a photo of two baby polar bears and a mother polar bear on an icy landscape](https://www.snexplores.org/wp-content/uploads/2022/06/polar_bear_den_mother-1030x580.jpg)
A mother polar bear often has two cubs at a time in a den dug into the shore or on floating ice. Baby cubs stay with their mothers for more than 2 years.
Steven C. Amstrup