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Last updated on April 19, 2014 at 18:42 EDT

Four-eyed fish

The four-eyed fishes are a genus, Anableps, of fishes in the family Anablepidae. They have eyes raised above the top of the head and divided in two different parts, so that they can see below and above the water surface at the same time. Like their relatives, the one-sided live bearers, they only mate on one side, right-”handed” males with left-”handed” females and vice versa.

Four-eyed fish