One small fish in Thailand could hold insights into the evolution of life on earth and how primitive ocean-dwellers developed into animals that could walk on land. Researchers from the New Jersey ...

Blind cavefish whose eyes have withered away may not be so blind after all. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Instead, a ...

Add Yahoo as a preferred source to see more of our stories on Google. Millions of years ago, a small, unremarkable fish called the Mexican tetra started swimming into the caves of eastern Mexico. In ...

Many grad students can sympathize with the blind form of the Mexican tetra. Researchers speculate they sleep only a few hours a night, because they simply don't have time to rest. Subscribe to read ...

Keep them in the dark for a million years. Then cross two strains of cave-dwelling fish, now totally blind. It turns out some of their kids will be able to see. Fish and other creatures lose their ...

Every group of Mexican tetra fish speaks with a different accent. Scientists studied both the blind cave-dwelling populations and those that live in rivers. They all communicate using a series of ...

Add Yahoo as a preferred source to see more of our stories on Google. A living specimen of the new species, Sinocyclocheilus longicornus, in a laboratory tank. A living specimen of the new species, ...

The blind cavefish has a problem. In the absolute blackness where it lives, no light illuminates its world. Yet the small fish has traded its eyesight for a different way to perceive its environment: ...

Blind fish that spend their lives in dark, underwater caves have lost a huge chunk of their ability to hear, scientists report in the March 27 Biology Letters. Two of the fish species studied could ...