What is a Mammal? |
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Although sometimes we don't seem too bright as a species, and that's why 1 out of 4 of the world’s mammal species are currently threatened with extinction. Mammals have been around for 200 million years.
The largest mammal that we know of is the blue whale, which can be 100 feet long and weigh 150 tons and the tiny hog-nosed bat which weighs only 0.05 ounces is the smallest. But even if mammals adapted to live on land or water, all mammals on earth share some common characteristics.
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Did You Know?
The Komodo dragon (Varanus komodoensis) is the world's biggest lizard species and also one of few venomous lizard species. |