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How does one species split into two?
East Africa's great lakes hold more than 800 kinds of cichlid fish, many sharing the same water. Mountains and oceans aren't the only way to split a species.
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East Africa's great lakes hold more than 800 kinds of cichlid fish, many sharing the same water. Mountains and oceans aren't the only way to split a species.
Tap to go on, or swipe →