About Animals: Communities and Ecosystems

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Animals Animals Animal Facts Habitat Facts Animal Evolution From Laura Klappenbach, your Guide to Animals Welcome to the Animals / Wildlife Newsletter, a weekly newsletter published by About.com's Animals / Wildlife website. For more about animals and wildlife, be sure to stop by the blog or browse the growing library of animal profiles. Communities and Ecosystems The natural world is characterized by many complex interactions and relationships between animals, plants, and their environment. Individual belong, in turn, to populations, species, communities, and ecosystems. Energy flows from... Read more What Is a Keystone Species? A keystone species is a species that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be... Read more Starfish Starfish (Asteroidea), also known as sea stars, are a group of echinoderms that include about 1500 living species. Starfish have five or more (in some species) arms that radiate outward... Read more The Basic Invertebrate Groups About 97 percent of all known animal species are invertebrates. Many of these species are classified in one of eight basic groups (although it should be noted that these basic... Read more Related Searches Forest Animals All Animals Rainforest Animals Wild Life Animals Facts About Animals Featured Articles Mammals Molluscs Reptiles Segmented Worms Sponges More Animal Facts »   More from About.com Sign-up for Shareables! An every-morning rundown of the day in history, headlines and trends produced by your pals at About.com. Please sign up it's free (of course), we think you will like it! Want More From About.com Check out our social page tailored to your interest! 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.com Animals newsletter. If you wish to change your email address or unsubscribe, please click here. If you would like to unsubscribe from all newsletters sent from About.com, please send an email to optout@about.com with "Unsubscribe" as the subject line. About.com respects your privacy: Our Privacy Policy Contact Information: 1500 Broadway, 6th Floor New York, NY, 10036 © 2014 About.com   Must Reads Animals A to Z What is Evolution? Basic Animal Groups Facts About Animals Biomes of the World   Follow me on: Advertisement