A "four-eyed" fish swims along the surface with eyes appearing both in and out of the water. New research explains how the fish simultaneously sees in these two very different environments. The ...

“Hey, four-eyes!” That playground taunt is more accurate when applied to Anableps anableps—a fish related to the guppy. It lives in the brackish waters of mangrove swamps in central and South America, ...

Two species of small, deep-dwelling fish called pearlsides possess eye cells that break the rules of vertebrate vision, combining features of rods and cones into a single hybrid photoreceptor never ...

Four-eyed fishes of the genus Anableps and their relatives are a fish family from the Neotropics with a number of bizarre traits that have fascinated naturalists for centuries. These include: (i) a ...

The fish - known as anableps - originally come from the rivers of South America where they use their bizarre eyes to see both above and below the water's surface at the same time. The pupil in each ...

A species of fish has an unusual way of eating — it thrusts its jaw out and downwards to nab prey on land. Krijn Michel at the University of Antwerp in Belgium and his colleagues took high-speed video ...

A "four-eyed" fish swims along the surface with eyes appearing both in and out of the water. New research explains how the fish simultaneously sees in these two very different environments. The ...