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When We Left Water

How our tetrapod ancestors first came ashore

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MAGAZINE HIGHLIGHTS

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The Great Takeover

Exotic mussels have pilfered the Great Lakes' food supply, creating a vast aquatic desert.
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Mystery of the Vanishing Eels

Tackling a migration enigma, scientists are getting a grip on where these slithery fishes call home.
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20 Things You Didn't Know About ... Animal Domestication

Dogs and cats are popular companions. But they’re not the only critters we’ve converted from wild to mild.
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