Despite popular belief, however, polar bear fur isn't actually white. While polar bear fur looks white most of the time, their fur color can change depending on the environment around them. Sometimes ...

So when the polar bear biologist Jon Aars heads out for his annual research trips, he scans the landscape for flashes of movement or subtle variations in color — the slightly yellowish hue of ...

Early in Candace Fleming’s POLAR BEAR (Neal Porter/Holiday House, 32 pp., $18.99, ages 4 to 8), we see the tip of the mother polar bear’s black nose poking out from the den near Canada’s ...