In this respect they recall the Four-eyed fish.

The four-eyed fishes only have two eyes each, but the eyes are specially adapted for their surface-dwelling lifestyle.

The four-eyed fishes are a genus, Anableps, of fishes in the family Anablepidae.

Family Anablepidae - four-eyed fishes and relatives (ovoviviparous)

Like their relatives, the onesided livebearers, four-eyed fishes only mate on one side, right-"handed" males with left-"handed" females and vice versa.

Four-eyed fish 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.

There are three genera with sixteen species: the four-eyed fishes (genus Anableps), the onesided livebearers (genus Jenynsia) and the white-eye, Oxyzygonectes dovii.

Anableps anableps, the Largescale four-eyed fish is a species of four-eyed fish found in brackish waters northern South America and Trinidad.

Tidal River: Showcases a river in which it's flow is influenced tides in Peninsula De Paria, Venezuela: Four-eyed Fish, Endler's Livebearers, Orang-spotted Sunfish.

"Seeing Sense": A vulture can spot a carcass from a great distance, the four-eyed fish can see above and below water simultaneously, a fly's multi-faceted eye sees a very different world than a human eye, while other insects can see into ultra-violet light.

This book describes the strategic trade-offs made by trees racing to the top of the jungle canopy; the adaptive tricks of vines (loops, curls and coils) to survive the trees' swaying; the "four-eyed fish" with separate sets of corneas and retinas for vision above and below the waterline.

The surface-dwelling fish, Anableps, has come up with a different solution - its eyes are split to create two extra eyes.

As Anableps swims along, one pair of eyes scans the air for predators, while the other pair examines the water for food.

The four-eyed fishes are a genus, Anableps, of fishes in the family Anablepidae.

Like Anableps species, they are onesided livebearers: some sources indicate that they only mate on one side, right-"handed" males with left-"handed" females and vice versa.

Jenynsia is the sister group to the genus Anableps and both are classified in the subfamily Anablepinae; together with the genus Oxyzygonectes they compose the family Anablepidae.