Invertebrates Pictures, Invertebrate Animals, Facts

Photo Gallery: Coral Reefs

About 80 percent of all life on Earth is found in the oceans, which cover 71 percent of the planet's surface. Take a look at how colorful life under the sea can be.
3-D Animal Migration Globe

Explore the migration patterns of twelve animals featured in National Geographic Channel's global television event Great Migrations, coming this November.
Oyster

Learn why these slimy-but-tasty invertebrates produce pearls. See how oysters can help humans monitor water quality by serving as “canaries in the coal mine."
Sea Cucumber

Learn how these amazing echinoderms deter predators by snaring them with sticky threads and even hurling their internal organs about.
Discoveries in the Dark

Eyeless spiders, translucent millipedes, 175-year-old crayfish, and other odd cave-dwellers face an uncertain future.

Mercury Makes Birds Homosexual?

Male birds that eat mercury-contaminated food show "surprising" homosexual behavior, scientists have found.
Species Uses Arsenic in DNA—A First

No, NASA didn't find life on another world. But scientists did discover a bacteria species that's perhaps the most "alien" yet seen.

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