Why Do Lions Eat Testicles? (There is a Good Reason)
Lions often start eating at the soft belly and groin of a kill, so a male prey animal's testicles may be eaten early. It isn't a special preference.

Lions often start eating at the soft belly and groin of a kill, so a male prey animal's testicles may be eaten early. It isn't a special preference.

Animals without tails include apes, Manx cats, hyraxes, kiwis, octopuses and spiders. See our list with photos and facts about how they get by.

Animals that wag their tails include cats, foxes, wolves, cows and horses. Learn why each one does it, from showing mood to swatting flies.

Do rats make noise when they die? Sometimes. A rat caught but not killed by a trap may squeak; poisoned rats die slowly over days, out of sight.

Can wolves eat chocolate? No. Like dogs, wolves process theobromine slowly, so chocolate can cause vomiting, a racing heart, seizures or death.

Snails eat with a jaw that cuts food and a radula covered in thousands of tiny teeth that rasps it up. See what snails eat and why to cook them well.

Sheep defend themselves mainly by flocking together and running away. Learn how ewes warn off threats and how guard animals and fences protect flocks.

The Lion King animals in real life: lions, spotted hyenas, a baboon, a red-billed hornbill, a meerkat, a warthog, wildebeest and vultures.

Elephants obey humans because they have been trained, either with rewards or, in cruel cases, with fear. They are wild animals, not domesticated ones.

Animals don't wear clothes because fur, feathers, fat and behavior keep them warm. Some pets, like short-coated dogs, may need a sweater in the cold.