Fish are aquatic animals who live in diverse habitats.

While folktales portray them as sly tricksters, foxes deserve our respect for their intelligence and adaptability.

With their distinctive honks and propensity to graze on roadside grass, Canada geese are among the most ubiquitous of our wild neighbors.

Giraffes are gentle giants.

Shy creatures who reside in extensive burrows, groundhogs keep to themselves and might go unnoticed in your own backyard.

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.

Horses are strong and resilient.

From butterflies to beetles, moths to mosquitoes, insects are a diverse bunch—and they’re crucial to keeping ecosystems healthy.

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.

Mink are semi-aquatic mammals similar in appearance to weasels and ferrets.

Monkeys are agile, intelligent primates—some of the closest animal relatives to humans.

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

Often maligned and misunderstood, opossums play many important roles in their ecosystems.

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.

Sporting their tux-with-tails plumage, penguins are one of Earth’s most charismatic and recognizable birds.

Pigs are gentle creatures with surprising intelligence.