About Animals: Perching Birds - The Most Specious of Birds

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Animals Animals Animal Facts Habitat Facts Animal Pictures From Laura Klappenbach, your Guide to Animals Welcome to the Animals / Wildlife Newsletter, a twice-weekly newsletter published every Monday and Thursday by About.com's Animals / Wildlife website. For more about animals and wildlife, be sure to stop by the blog, participate in forum discussions, and browse the growing library of animal profiles. Perching Birds - The Most Specious of Birds Perching birds, also known as passerines, form the largest of all the basic bird groups. There are somewhere in the range of 5,200 to 5,500 species of perching birds alive today. This means that some 60 percent of all living birds are perching birds.... Read more See More About:  birds  perching birds  The Pulmonates - Molluscs with Lungs Terrestrial and freshwater snails and slugs form a group known as the pulmonates. The pulmonantes are unique from other molluscs in that they have lost their gills and breath using... Read more See More About:  snails  slugs  gastropods Cephalopods - The Jet-Propelled Molluscs Of all the many ways animals get around—running, climbing, swimming, flying, lumbering, jumping, slithering—the oddest by far is jet propulsion. Only a few groups of animals use this method of... Read more See More About:  cephalopods  octopuses  squids Birds Birds are a group of backboned animals that includes about 30 groups such as albatrosses, gamebirds, herons, hummingbirds, owls, parrots, penguins, perching birds, woodpeckers and many others. There are between 9,000 and 10,000 species of birds alive today. The first birds evolved from reptiles during the Mesazoic Era about 150 million years ago. The articles listed below provide information about the characteristics, classification and evolution of birds. Animals / Wildlife Ads Animals Angry Birds Egg Food for Birds Pictures Birds Wild Life Animals Featured Articles Fishes Invertebrates Mammals Reptiles Habitat Facts Zoology Basics   More from About.com 2011's Cutest Winter Boots Snuggly snow boots are essential for women who live in cold climates, but still want to put their best foot forward. More> 10 Budget Work Essentials Figuring out how to pay for a fabulous work wardrobe can be a challenge. These 10 mix-and-max essentials are all under $50. More> This newsletter is written by: Laura Klappenbach Animals Guide Email Me | My Blog | My Forum   Sign up for more free newsletters on your favorite topics You are receiving this newsletter because you subscribed to the About Animals newsletter. If you wish to change your email address or unsubscribe, please click here. About respects your privacy: Our Privacy Policy Contact Information: 249 West 17th Street New York, NY, 10011 © 2011 About.com   Must Reads Animals A to Z What is Evolution? Basic Animal Groups Facts About Animals Animal Characteristics Advertisement