| | Renewed Hope for Australian Echidnas The western long-beaked echidna is a critically endangered egg-laying mammal (also known as a monotreme) that inhabits the westernmost tip of New Guinea. Although the western long-beaked echidna's historic range... Read more | City Blackbirds Pump Up the Volume A group of scientists from the Max Planck Institute for Ornithology have discovered that city-dwelling blackbirds use a variety of methods to ensure their songs can be heard over background... Read more | Winter Rains Synchronize Arctic Population Cycles The island of Spitsbergen in the high Arctic is home to a seductively simple food web. The food web includes just four vertebrates--three herbivores (reindeer, rock ptarmigans and sibling voles)... 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. | | | | 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 © 2012 About.com | | | | Must Reads | | | Follow me on: | | | | Advertisement | |
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