Sea urchins see with their whole body

Thursday, June 30, 2011 - 20:00 in Biology & Nature

These are sea urchins. Many animals have eyes that are incredibly complex – others manage without. Researchers at the University of Gothenburg have shown that sea urchins see with their entire body despite having no eyes at all. The study has been published in the scientific journal Proceedings of the National Academy of Sciences (PNAS).