The 15th Amendment granted African American men the right to vote.

A cheetah is built for speed with a lightweight body.

Fact #470 · Animals

Archaeopteryx is considered a transitional fossil between dinosaurs and birds.

Fact #624 · Animals

Certain species of fish live near hydrothermal vents.

Fact #467 · Animals

Some birds use tools to extract insects from wood.

Fact #416 · Animals

Some spiders use vibrations to detect trapped prey.

Fact #455 · Animals

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

Fact #553 · Animals

Some insects communicate using pheromones.

Fact #469 · Animals

Some insects can survive being frozen.

Fact #560 · Animals