Fossils of ancient predators with three eyes shed light on evolution of insects

Research based on a collection of fossils from the Burgess Shale shows a bizarre-looking animal with three eyes that sheds light on the evolution of the brain and head of insects and spiders.
The study, published in the journal Current Biology, looked at 268 specimens collected in the 1980s and 1990s from a site in Yoho National Park in British Columbia and stored at the Royal Ontario Museum in Toronto.
Dozens of those fossils contained the brain and nervous system of the half-billion-year-old S