The Blind Fish That Didn't Rewire Its Brain
The Blind Fish That Didn’t Rewire Its Brain Everything I thought I knew about blind cavefish was wrong — or at least, built on a metaphor that turns out to be misleading. Here’s the story as it’s usually told: Astyanax mexicanus, the Mexican tetra, has populations that wandered into limestone caves hundreds of thousands of years ago, lost their eyes, and “repurposed” the brain tissue that would have processed vision for other senses....