| | Scientists Track Pink-Footed Shearwaters An international team of scientists is tracking the movements of six breeding pink-footed shearwaters to find out more about the species' migratory and breeding behaviors. The project brings together experts from Chile, the United States and Canada. | The Basic Invertebrate Groups Nearly 97 percent of all known animal species are invertebrates. This article explores some of the basic groups of invertebrates including arthropods, cnidarians, echinoderms, molluscks and sponges. ... Read more | New Species of Butterfly Named Over a century ago, specimens of a tiny, green-eyed butterfly were preserved in the Smithsonian entomology collection. At the time, the butterfly specimen was classified as a gray ministreak. But... Read more | Invertebrates Invertebrates are a diverse group of animals that includes over 30 phyla. Invertebrates do not have a backbone, nor a bony skeleton. This large group of animals includes sponges, cnidarians, flatworms, roundworms, segmented worms, molluscs, echinoderms, and arthropods. About 97 percent of all known species are invertebrates. The articles listed below provide information about the characteristics, classification and evolution of invertebrates. | | | | Related Searches | | | | Featured Articles | | | | | | Sign up for more free newsletters on your favorite topics | | | | You are receiving this newsletter because you subscribed to the About.com Animals newsletter. If you wish to change your email address or unsubscribe, please click here. About.com respects your privacy: Our Privacy Policy Contact Information: 1500 Broadway, 6th Floor New York, NY, 10036 © 2013 About.com | | | | Must Reads | | | Follow me on: | | | | Advertisement | |
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