Mammal (dk Eyewitness Books) Online
(like primates, marine mammals, or marsupials) Evolutionary history and fossils Conservation efforts for endangered species
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Mammals are among the most diverse and fascinating creatures on Earth, ranging from tiny shrews to the massive blue whale . Every mammal shares key characteristics: they are warm-blooded, have hair or fur at some point in their lives, and nurse their young with milk. While most mammals give birth to live young, unique outliers like the platypus and echidna actually lay eggs. Mammal (DK Eyewitness Books)