Polar bears are one of the largest mammals on land; only the African elephant can tower over the polar bear in this corner of ...

Mating season lasts from May through July. As in all bear species, fertilized embryos delay implantation in the female’s uterus. If a sow isn’t vigorous enough to sustain a pregnancy, ...

The sloth bear cubs, born in late 2024, will help researchers learn more about how to protect the vulnerable species, the zoo ...

The great white polar bear is the youngest and largest of the world's bear species — a mighty hunter and fierce defender of its young that's among the world's most vulnerable animals. Two-thirds of ...

Moving forward, the review authors call for more research on four less-studied bear species—sloth bears, giant pandas, spectacled bears, and sun bears—and for more documented evidence of cannibalism ...

Grizzlies on the loose! In this clip, watch grizzly bears running all over the place in Alaska's Grand Teton National Park!