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In Images: The Extraordinary Evolution of 'Blind' Cavefish

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'Blind' Mexican Cavefish

Credit: Richard Borowsky

Although their appearance varies wildly, the freshwater Mexican cavefish (Astyanax mexicanus) is the same species as the surface-dwelling Mexican…Read More »









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So-called "Blind" Mexican cavefish are an example of convergent evolution, a new study shows. This type of evolution is characterized by several populations repeatedly, and independently, losing their sight and pigmentation as they adapt to their dwellings. [Read related article: Cavefish Not Blind to Attractions of Surface-Dwelling Cousins]

Click on for more images of the ghostly cavefish and how it compares to its surface-dwelling cousin.   Less «
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