| | Gharial Pictures Gharials are a critically endangered species of crocodilian most notable for their long, slender snout. View pictures of gharials in this photo gallery.... Read more | Echinoderm Pictures You can view pictures of echinoderms, including sea stars, sea cucumbers, brittle stars, sea daisies, sand dollars, sea urchins and more here.... Read more | Sea Cucumbers - The Sausage-Like Echinoderms Sea cucumbers are sausage-shaped echinoderms that include about 1250 species. Sea cucumbers have a reduced endoskeleton that consists of tiny ossicles (made of calcium carbonate) embedded in the body wall.... Read more | Reptiles Reptiles are a group of vertebrates that includes crocodilians, lizards, snakes and turtles. There are about 8,000 species of reptiles alive today. Early reptiles diverged from other amniotes between 320 and 310 million years ago during the late Carboniferous Period. The articles listed below provide information about the characteristics, classification and evolution of reptiles. | | | | Animals / Wildlife Ads | | | | Featured Articles | | | | More from About.com | | | | | | Bake Sale Bestsellers Make your next bake sale a profitable one with these irresistible recipes. More>
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