Cichlid Fish with Large Snout (IMAGE)

University of Massachusetts Amherst

Cichlid Fish with Large Snout

Caption

An African cichlid fish with an extra large snout. In PNAS, UMass Amherst biologists offer evidence that the evolution of such a trait is due in part to increasing the expression of core members of an existing gene network. The snout hangs over the animal's upper jaw and teeth and helps them to pry tough algae from rocks.

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UMass Amherst

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