Animal intelligence

"If she is dreaming, this is a dramatic moment. You could almost narrate the body changes and narrate the dream," the scientist said.

Researchers investigated a unique group of dolphins in Western Australia which use sponges as tools to forage for food.

Killer whales live in highly complex societies, much like humans.

If a bird sees their friend spitting out an insect, it's safe to assume that insect is gross.

A noisy flock of crows gathers in the mornings and evenings on a University of Washington rooftop. What are they saying?

The humble urban birds scored as well as primates in an intelligence test.

Also, carnivores don't have more neurons than herbivores.

More animal cognition research shows that they can recognize Barack Obama and Emma Watson.

"I only help her with changing the brushes," says her owner.

This bulbous-headed animal had to learn to fit in with her sleeker cousins.

Cows perform complex tasks, are social, and have different personalities.

Dolphins are helping science understand the connection between brain size and culture.

New research shows ravens are actually better at bartering than several apes, including chimps.

The animals vocalizations are difficult to hear, and they don't talk very much.