protensa that there were already complex, well-developed eyes by the Early Cambrian, around 517 million years ago. Before this time, the fossil record is patchy. 'You don't get large body fossils of ...

From eyes the size of a dinner plate to 360-degree vision, these animals boast extraordinarily efficient ways of seeing. Meet the creatures with the most crafty ...

You can see this location of the eyes in animals like Tiktaalik. As our lineage moved onto land, our ancestors' eyes migrated toward the sides of the head. This adaptation of their visual ability ...