Evolution's Witness: How Eyes Evolved Adelyn Zhou the town's teenagers decide to

the town's teenagers decide to break their strict regulations and go viral with the haunting

and her hometown of Los Angeles

USMC in the Second Battle of Fallujah

nutrition coach Inbar Gavra shares healthy

Geuss was admitted in 1959 to an unusual boarding school on the outskirts of Philadelphia

Evolution's Witness: How Eyes Evolved Adelyn Zhou the town's teenagers decide toWith predation and carnivory as catalysts, the first known eye appeared in a trilobite during the Cambrian explosion approximately 543 million years ago. This period was a crucible of evolution and teemed with anatomic creativity although the journey to formed vision actually began billions of years before that. The Cambrian period, however, spawned nearly all morphologic forms of the eye, followed by descent over hundreds of millions of years