Cheetahs are the fastest animals in the world, but they can only run at top speed for a few minutes before slowing down. Cheetahs don't growl like other big cats, they purr. Cheetahs have excellent eyesight during the da... More »

The cheetah is the fastest land mammal and can run as fast as 60 to 70 miles per hour. This is about the same speed as a car on the interstate. Though fast, cheetahs can only run short distances, and they require up to 3... More »

Although cheetahs are one of the smallest species of the big cats, they are the fastest mammals on land with bodies that evolved for speed. However, the cheetah is also the most endangered of the cats due to habitat loss... More » Pets & Animals Mammals Large Cats

If the cheetah were to go extinct, the resulting disruption in the food chain would include an uncontrolled rise in populations of prey animals such as antelope and a corresponding decrease in local vegetation. When prey... More » Science Biology Zoology

The top ten slowest animals in the world, ranging from fastest to slowest, are the manatee, Gila monster, nematode, seahorse, slug, koala bear, giant tortoise, garden snail, starfish and three-toed sloth. The three-toed ... More »

Octopuses, orangutans, ocelots and ostriches are examples of animals that start with the letter "o." Common octopuses live in tropical and temperate oceans around the world, while orangutans are primarily concentrated in... More » Science Biology Zoology

If humans are viewed as animals, then they are the smartest animals in the world. If humans are excluded, then chimpanzees rank as the smartest animals. More » Science Biology Zoology