Aquatic Mammals
Aquatic mammals such as whales and dolphins live and feed in the ocean. The Blue Whale is the biggest mammal on Earth. See more »
what's inside: mammals
Scientifically-speaking there are 11 mammal groups, and most Mammals are warm-blooded, have body hair, give live birth and nurse their young with milk from mammary glands. Check out these articles about all kinds of mammals.
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Bats
Bats are the only flying mammal. Learn about these peculiar and misunderstood animals in this section. See more »
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Bears
Bears are part of the Mammalia Class and are within the order Carnivora. There are only 8 living species of bear and each has stocky legs a long snout, thick shaggy hair and five non-retractile claws. See more »
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Carnivores
Carnivores are meat-eating mammals. Learn about tigers, coyotes, and other predators of the animal kingdom. See more »
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Hoofed Mammals
Hoofed animals are generally herbivorious and very diverse. Learn about antelopes, cattle, deer, pigs and sheep. See more »
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Insectivores
Insectivores are carnivorous mammals that survive by eating almost nothing but small insects. Insectivores include bats, frogs, lizards and anteaters. See more »
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Marsupials
Marsupials are mammals that commonly bear a pouch such as Kangaroos and Koala Bears. Two thirds of marsupial species are found in Australia. See more »
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Primates
Primates are placental mammals that include gorillas, monkeys and chimpanzees, as well as humans. Other than humans, primates are found mostly in Central and South America, Africa, and South Asia. See more »
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Rodents
Nearly 40% of mammal species are rodents, and they are found on every continent except Antarctica. Rodents include mice, rats, squirrels, chipmunks and beavers, among others. See more »
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Other Mammals
Mammals are perhaps the most recognized type of wild animals on the planet. Check out our articles on well-known mammals like elephants, giraffes and panda bears, as well as some you might not know like pikas and tapirs. See more »
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featured articles
How Whales Work
Despite their monumental proportions, the most phenomenal thing about whales isn't how big they are: It's the way they live. Whales are mammals -- warm-blooded, air-breathing creatures -- but they spend their entire life in the ocean. Find out about these awe-inspiring creatures.
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Mealtime in the Kalahari Desert isn't exactly an all-you-can-eat buffet. Meerkats eat what they can get -- even poisonous scorpions. Why doesn't the venom hurt them?
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