Animals developed eyes for seeking light
Friday, November 21st, 2008A new research has suggested that the first eyes in the animal kingdom evolved for the purpose of seeking light.Larvae of marine invertebrates - worms, sponges, jellyfish - have the simplest eyes that exist. They consist of no more than two cells: a photoreceptor cell and a pigment cell.
These minimal eyes, called eyespots, resemble the […]