| | Understanding the Golden-Crowned Sifaka Population Decline Scientists have recently proposed that the population of golden-crowned sifakas in the Daraina region of Madagascar declined prior to the arrival of humans to the region. The team also examined... Read more | Animal Characteristics Find out more about the basic characteristics of animals in this article. Although most people have a general sense of what an animal is, you'll learn the specific traits... Read more | The Basic Animal Groups By understanding the basics about the six basic animal groups, you'll be on your way to grasping the basic characteristics of virtually every animal on the planet.. ... Read more | Mammals Mammals are a group of vertebrates that includes about 21 groups such as anteaters, bats, carnivores, cetaceans, elephants, marsupials, primates, rodents and many others. There are about 5,400 species of mammals alive today. Mammals first appeared about 200 million years ago during the Jurassic Period. The articles listed below provide information about the characteristics, classification and evolution of mammals. | | | | Animals / Wildlife Ads | | | | Featured Articles | | | | More from About.com | | | | | | Free Children's Books How would you like to have access to a free online public library of books from around the world for kids 3 to 13? Read more...>
| | | | Best Water Parks Better pack your bathing suit -- here are our recommendations for the funnest, wettest, splashiest water parks around. Read more...>
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