We've never seen this rare squid alive in the wild—until now. In the deep seas found at the Earth’s poles, explorers are still finding elusive and mysterious sea creatures.

Here's how Jorge the sea turtle prepared for the improbable journey—decades after he was found tangled in a fishing net off the coast of Argentina.

These dolphins have orca ‘friends.’ They may have an ulterior motive. Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans.

Although sharks aren’t the mindless man-eaters they are sometimes made out to be, experts know that staying safe involves skill, knowledge, and practice.

The vulture has to be one of the most reviled creatures on Earth.The very word “vulture” is an insult—a synonym for a greedy exploiter. In a way, vultures’ bad reputation is understandable.

How the Old Masters painted animals: dragonfly wings and butterfly dust. A first-ever collaboration between the National Gallery of Art and the Smithsonian examines the birth of natural history.