Scientists have tested this hypothesis in recent years by studying the fish Astyanax mexicanus. You can find perfectly normal populations of this fish in surface waters in the U.S. , but if you go ...

While it's very true that, as the great Ian Malcolm once said, "life finds a way," that way can sometimes veer quite far off the beaten path. One of the most beautiful and strange examples of this ...

To truly see if black eyes are a signal, the team needed to do an experiment. Somehow, they had to manipulate the color of a fish’s eyes to see how other guppies would react.

One tweep posted: “One time nail, the next fake eyes, next time they will sell us fake fish toys, lack of honesty and cheating is mastered by a lot of people looking for quick profits.” ...

If you look deep into the eyes of a fish, it will tell you its life story. Scientists from the University of California, Davis, demonstrate that they can use stable isotopic analysis of the eye lenses ...

The four-eyed spookfish may have seemed strange enough. Now researchers say it doesn't really have four eyes. Instead, it is the first known vertebrate to use mirrors, rather than lenses, to focus ...

Mohamed El Dahshan tweeted: “Kuwaiti police has shut down a fish store that was sticking googly eyes on fish to make them appear more fresh than they are. :-) via Al Bayan newspaper” which got ...

The strange animal had large, bulbous eyes that made it look like something truly out of this world. Oscar Lundahl, 19, nearly “jumped out of his fishing boat” when he pulled the strange ...