a bull shark in a net — Mother Sharks Respond to Climate Change

A shark tooth embedded in a bone — What the Megalodon Left Behind

The dwarf lantern shark sits in a human hand. — 5 Reasons to Revere, Not Fear, the Shark

Quicklinks

Two penguins on a rocky shore.

Penguins

Mangrove roots stick out above coastal waters.

Mangroves

A colorful coral reef in blue ocean water.

Corals

A brittle star holding on to deep-sea coral.

Deep Sea

A giant squid at the surface of the ocean.

Giant Squid

A hammerhead shark swims just underneath the surface of the water.

Sharks

A satellite image of a hurricane.

Hurricanes Typhoons & Cyclones

An iridescent jellyfish underwater.

Jellyfish & Comb Jellies

Featured Content

A scalloped hammerhead (Sphyrna lewini) at Isla del Coco, Costa Rica.

Do Sharks Smell in Stereo?

by Nancy Knowlton

The Cook islands banknote

Sharks and Humans: A Love-Hate Story

by Danielle Hall

Freshly cut dorsal fin from a scalloped hammerhead shark held by fisherman with knife.

Shark Finning: Sharks Turned Prey

by Caty Fairclough

Explore Map

Daily Catch

Chrysaora melanaster is a jellyfish found in the Arctic.

An Arctic Jelly

Chrysaora melanaster, one of the largest jellyfish commonly found in the Arctic, swims underneath the Arctic ice. Its tentacles can stretch to more than 3 meters long and pack a mean sting for humans.

Around the Web

Dirty, Crevassed Glaciers in Alaska

Ocean Leadership

History and Seaports in Charleston

Ocean Leadership

Dry Season Fires in Australia

Ocean Leadership

The Eastern Caribbean Is Swamped by a Surge of Seaweed

Ocean Leadership

Roving Exhibit Highlights Ocean Plastics Problem

Ocean Leadership

Are You An Educator?

At Smithsonian Ocean, we have lesson plans, activities, and resources to help you engage your students in the wonders of our oceans.

See Lesson Plans