Chickens are intelligent birds with a complex social hierarchy.

Named for their stubby tails, bobcats are so elusive that you’d be lucky to catch a glimpse of one in your lifetime.

Depending on pack ice for their habitat, polar bears are threatened by climate change—and by traffic in their fur and parts.

Members of the weasel family, otters are known for their elongated bodies, webbed feet and playful antics, particularly their love of sliding down rocks, banks or waterfalls.

Pigs are gentle creatures with surprising intelligence.

Cows are social, complex animals.