The model follows the full life cycle of individual polar bears from ... During this period, the region's polar bear population dropped by almost 50 percent. In addition, the average size of ...

The Detroit Zoo welcomed Haley, a 22-year-old polar bear, to its Arctic Ring of Life habitat. She joins two other polar bears ...

Above-ambient temperatures also indicate a bear in a den ... gave us a detailed look at this cryptic component of polar bears’ life cycle. By linking images back to data from the collars ...

Why did the brown bear evolve into the polar bear? Animation describing how brown bears adapted to life in the Arctic. Sam, a young tortoise, is hungry. Grandad Charlie tells him a story about how ...