Out of darkness, blind Mexican cavefish illuminate brain evolution
Deep within the dark caves of northeastern Mexico lives a fish that has spent hundreds of thousands of years adapting to a world without light. The blind Mexican cavefish (Astyanax mexicanus) has evolved in perpetual darkness, losing its eyes and pigmentation while developing remarkable adaptations...
Image: Phys.org
Deep within the dark caves of northeastern Mexico lives a fish that has spent hundreds of thousands of years adapting to a world without light. The blind Mexican cavefish (Astyanax mexicanus) has evolved in perpetual darkness, losing its eyes and pigmentation while developing remarkable adaptations that help it survive in nutrient-poor environments.
Originally published at Phys.org
