Amelia Gray, a polar bear at the Oregon Zoo, is set to embark on a new chapter as she moves to the Brookfield Zoo in Chicago ...

A new polar bear is coming to Chicago's Brookfield Zoo. The zoo is welcoming 8-year-old Amelia Gray, coming from Oregon. She ...

BROOKFIELD, IL -- Guests at the Brookfield Zoo will soon have a new polar bear to view. Amelia Gray, an 8-year-old female ...

Video in the player above shows Brookfield Zoo’s baby kangaroo drawing a crowd. BROOKFIELD, Ill. (WGN) — The polar bears at ...

One of the Oregon Zoo's half-sister polar bears, Amelia Gray, is heading out east, the zoo announced Thursday.

On Thursday, Brookfield Zoo announced that Amelia Gray, an 8-year-old female, will be making the move from the Oregon Zoo to ...

It has been a challenging time for the San Diego Zoo, where three beloved animals — Kalluk, a polar bear; Nicky, a giraffe; ...

Polar bear fossils have been dated to over 100,000 years ago, which means that polar bears have already survived an interglacial period when temperatures were considerably warmer than they are at ...

These anticipated declines have led to a proposal to list the polar bear as a threatened species under the Endangered Species Act. A decision was due in January but has been delayed.

With the polar bear species in a fight for survival because of disappearing Arctic sea ice, a new distinct group of Greenland bears seem to have stumbled on an icy oasis that might allow a small remot ...

— Yes, polar bears and brown bears are sister species, closer to each other than they are to black bears. The two diverged maybe 4 million to 5 million years ago, the authors estimate.

It might make sense — if the polar bear were endangered. But the worldwide population of these bears has more than doubled since 1965, to an estimated 20,000-25,000 today.