ARE BLIND FISH THE ANSWER?

In the dark caves of Mexico swim fat,

eyeless cavefish: Mexican tetra

(Astyanax mexicanas). Harvard researchers have taken an interest, after discovering the fish are resistant to insulin, yet perfectly healthy. “Evolution has tried a lot of gene variants over millions of years and I think that’s smarter than anything we can come up with,” says Nicolas Rohner, a co-author of the study. “It

would be silly not to look.”