Seeing Again: Blind fish parents have fry that see

By Susan Milius, 15:58 PM April 15, 2008

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 sight after generations living in caves. Yet working vision genes from one parent can partly make up for defunct versions from the other parent, at least in young fish, reports Richard Borowsky of New York University.

The vision rescue experiment works only if mom and dad come from different caves, s...

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