A gorilla's big toe is opposable, like our thumb, to help the animal grab food or climb trees.
Every zebra’s stripe pattern is different—no two are alike.
The Andean flamingo is the only flamingo species with yellow legs.
Tigers can see six times better than humans at night.
A butterfly's wings move in a figure "8" motion that pushes them through the air.
Andean bears are the only bears found in South America.
A male Galápagos tortoise can weigh more than 500 pounds—and may live 150 years or more.
A male lion can eat up to 140 pounds of food in one meal.
A herd of hippopotamuses is also called a "bloat."
The okapi's dark tongue is long enough to reach its ears and eyes.
Armadillo is Spanish for "little armored thing."
African penguins can hold their breath for over 2 minutes and dive over 400 feet deep!