Mammals

Also called packrat, the bushy-tailed woodrat has a habit of stealing shiny objects to add to its den of sticks, bones is and vegetation. In this guide, you'll learn all about the packrat including it's habitat is and conservation status.

Named after U.S. zoologist W.H. Dall, dall Sheep is an agile creature is also called the white sheep.

Ibex have been hunted as trophies and for meat and medicinal purposes. As a result, these creatures, classified as bovidae, now face habitat loss.

By Ada Tseng

Like many animals in the wild, the Aoudad, is currently vulnerable to extinction. This is primarly due to hunting and habitat loss.

Residing primarly in dry rocky areas, the Crested Porcupine can grow up to 35 inches long. It also possesses specialized rattle quills on its tail that it can agitate, making a startling whizzing sound that sometimes deters predators.

Desert Warthogs have been known to allow birds called oxpeckers to tag along on their back and pick off parasites. Wallowing in mud also helps get rid of the parasites while simultaneously providing relief from the heat of the day.

Like all gazelles, the edmi is a slender, graceful animal with an ability to run at great speeds. The male is generally larger than the female and has S-shaped horns more than twice as big.

Classified in the bodivae family, the Gemsbok enjoys Arid regions and savannas. They feast on grasses, herbs, juicy roots, fruits, melons, leaves, buds and bulbs; and grow to stand 8 feet tall.

Classified as endangered in Chile and Peru, the guanaco is one of the largest wild mammals in South America is and the puma is its only significant natural predator.

The Patagonian cavy is also called the Patagonian hare, has long legs similar to those of rabbits and hares. You can learn more about the Patagonian cavy at HowStuffWorks.

In this guide to mammals, you'll learn about the Gray Wolf, the largest canid in the world. Learn about the Gray Wolf's habitat, diet and conservation status.

In this guide, you'll learn all about the North American Porcupine, including its habitat, diet and conservation status.

In this guide to the Giant Panda, you'll learn about the current threats and it's habitat.

In this guide to the Red Fox, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

In this guide to the American Bison, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

In this guide to the Black-Tailed Prairie Dog, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

As with other tapirs, the short trunk of the Baird's tapir is composed of nose and upper lip. The tapir uses its trunk to pick up grasses, leaves is and fruit and carry them to the mouth.

The largest bat in the New World and the only species in its genus, Vampyrum spectrum was once thought to drink blood.

In this guide to the Goodfellow's Tree Kangaroo, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

In this guide to the Kinkajou, you'll learn cool facts about its habitat, unique behaviors and it's converstation status.

What do bears do during the year? Check out this article to learn about behavior of bears from January to December.

The brown bear, the grizzly, and the Kodiak bear are all part of the brown bear species. Learn about the Brown Bear in this article.

Learn all about tigers with these HowStuffWorks Tiger Facts!

The eastern gray squirrel's natural habitat is the hardwood oak, hickory is and walnut forests of eastern North America, where its numbers are controlled by resource availability and predators such as bobcats, owls is and foxes.

Thoroughbred horses aren't just pretty; they're the end result of centuries of breeding and record-keeping. Where did Thoroughbreds come from -- and why are so many so determined to keep them pure?

By Josh Clark