Animals

Animals

Echoes of hunting

Bats use high-pitched sounds to zero in on prey, converting what they hear into how they fly.

Environment

Bald eagles forever

The U.S. bald eagle population is on the rise.

Animals

Ultrasonic Frogs Raise the Pitch

Some frogs that live in noisy streams communicate by using ultrasonic calls.

Fossils

Mammals in the shadow of dinosaurs

Not all early mammals that lived in the age of dinosaurs were shy and retiring.

Animals

Cannibal Crickets

Hunger and danger keep a certain type of cricket hopping along in large swarms.

Animals

Killer Flatworms Hunt with Poison

A newly discovered flatworm uses poison to hunt small, shelled sea creatures.

Animals

Poor Devils

When Tasmanian devils bite each other, they may pass on a fatal disease.

Animals

Red Apes in Danger

The population of orangutans in northeastern Borneo appears to be falling rapidly.

Animals

Polly shouldn’t get a cracker

When female kakapo parrots go on a diet, they produce fewer male chicks.

Animals

A whale’s amazing tooth

The narwhal's long tusk may sense changes in water temperature and pressure, helping the sea animal survive in the Arctic.

Animals

Professor Ant

Certain ants can teach other ants the route to a food source.

Animals

Young Ants in the Kitchen

Certain ant larvae fix dinner for adults and don't even sneak snacks as they cook.