Starfish can regenerate entire bodies from a single arm — as long as the arm contains part of the central disc.

A sea lion can hold its breath for several minutes underwater.

Fact #400 · Animals

A giraffe's neck contains the same number of vertebrae as a human's.

Fact #398 · Animals

A giraffe's heart can weigh over 20 pounds.

Fact #447 · Animals

A cheetah can accelerate from 0 to 60 mph in a few seconds.

Fact #363 · Animals

Many birds use Earth's magnetic field for navigation.

Fact #388 · Animals

A blue-ringed octopus carries venom potent enough to affect humans.

Fact #370 · Animals

A sloth can take up to a month to digest a single meal.

Fact #441 · Animals

Emperor penguins can dive deeper than 1,500 feet.

Fact #344 · Animals