Life Life's Early Glimmers
Fossils aren't very colorful. But some of them used to be: A zoologist has found that some Cambrian creatures that roamed the sea floor 515 million years ago were iridescent, a development he believes was one of many triggered by the emergence of vision. The find, described in the 7 June Proceedings: Biological Sciences of the Royal Society, comes from the fossil-rich Burgess Shale of British Columbia.