The Tibetan mastiff was the most expensive dog breed ever sold — one sold for $1.9 million in China.

A kangaroo cannot walk backward easily.

Fact #375 · Animals

Octopuses can solve simple puzzles and open jars.

Fact #31 · Animals

Some birds cache food for later consumption.

Fact #461 · Animals

A fox has keen hearing adapted for hunting small prey.

Fact #534 · Animals

Many species of beetles have hardened wing covers called elytra.

Fact #457 · Animals

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

Fact #398 · Animals

Some lizards can detach their tails to escape predators.

Fact #509 · Animals

A tarantula can survive for weeks without food.

Fact #353 · Animals