Bears are powerful, majestic animals who face numerous threats.

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

Sensitive, intelligent elephants are the world’s largest land mammal (by weight) and a living link to long-extinct species like the woolly mammoth.

Giraffes are gentle giants.

Guinea pigs are gentle, curious pets.

Hamsters are desert-dwelling rodents who have become popular pets.

Combine a bulbous snout with a prominent jaw, a body like a beer keg set on four stubby legs, and you have a hippopotamus.

They look like a deer crossed with a giant jack rabbit; with long, muscular tails and belly pouches, kangaroos are the world’s largest marsupial.

African lions are stunning and iconic creatures in danger of extinction.

Mice and rats are curious, social animals who can make excellent pets.

Whether you call them mountain lions or cougars, they’re one of the most adaptable big cats in the Western Hemisphere.

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

These shy, gentle animals share our neighborhoods—and sometimes our homes.

One of the largest living land mammals, rhinoceroses once shared the earth with saber-toothed cats and the earliest humanlike apes.

Sheep are complex and intelligent animals.

Tigers are the largest cat species, with striped coat patterns as unique as fingerprints.

Social, family-oriented and highly adaptable—wolves have a lot in common with humans.

Zebras are striped, horse-like mammals that live across Africa.

To save wildlife from being killed just for bragging rights.

Because beauty should be kind.