Nick Hawkins / A female American black bear (Ursus americanus) and her young cub, Nova Scotia, Canada. July.

Marie Read / Black-necked stilts (Himantopus mexicanus) pair performing post-copulatory display (as copulation ends, the male slides off the female leaving his wings draped over her and crossing his bill with hers...

Jed Weingarten / Wild Wonders of China / Asian black bear (Ursus thibetanus) feeding on leaves, Tangjiahe Nature Reserve, Sichuan Province, China, April.

Edwin Giesbers / Giant panda (Ailuropoda melanoleuca) in snow, captive.

Donald M. Jones / Black Bear (Ursus americanus) cub in tree, western Canada

Danny Green / Black bears (Ursus americanus) three cubs, one climbing, Minnesota, USA, June

Steve Gettle / Black Bear (Ursus americanus), Great Smoky Mountains National Park, North Carolina

Mark Raycroft / Black Bear (Ursus americanus) cub in tree, North America

Matthias Breiter / Black Bear (Ursus americanus) in temperate rainforest, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) sleeping in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) sleeping in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska

Matthias Breiter / Black Bear (Ursus americanus) in tree in temperate rainforest, Anan Creek, Tongass National Forest, Alaska