The first antibiotic, penicillin, was discovered in 1928 — and changed medicine more than any single drug.

A bald eagle builds some of the largest nests of any bird.

Fact #553 · Animals

Certain fish clean parasites off larger fish.

Fact #523 · Animals

Some bamboo species can grow more than a foot in a single day.

Fact #115 · Animals

Certain ants can detect chemical trails left by their colony.

Fact #448 · Animals

Bats are the only mammals capable of sustained flight.

Fact #58 · Animals

Some mammals hibernate during winter.

Fact #303 · Animals

Many species of beetles have hardened wing covers called elytra.

Fact #457 · Animals

Snow leopards use their long tails for balance.

Fact #371 · Animals