A friend of mine gave me a package of Sea Monkeys as a gag gift for my birthday. I grew them, and they look nothing like the package but they really are alive! What are these things? See more »

What creatures live in Earth's oceans? Which are likely to survive into the future? What sorts of sea animals have inhabited the oceans in the past? Finding answers to these questions is the goal of the Census of Marine Life. See more »

Oceans and marine life have a symbiotic relationship. Learn about the relationship between oceans and marine life here. See more »

Sea Spider, a sea-dwelling animal that looks somewhat like a spider. There are about 500 species. See more »

Sea Squirt, a marine animal usually found in coastal areas. Most sea squirts live permanently attached to such objects as rocks, shells, and wharves. See more »

Oceans cover most of the Earth's surface. They include a vast diversity of life, everything from plants to large mammals. Oceans represent a truly undiscovered world for most people. Take this quiz and learn more about ocean life. See more »

Sponge, a simple, aquatic animal that looks like a plant. The term is also used for the skeleton of certain types of these animals; the skeleton soaks up fluid easily. See more »

The green glossary explains kelp forests in this article. Learn about kelp forests and their imact on marine environments. See more »