mercoledì 11 giugno 2014

NYT Science: An Ancient Fish

An Ancient Fish
By Phlesch Bubble

Metaspriggina swam the oceans more than 500 million years ago. Now its fossils are helping scientists understand how our own biology developed.

Published: June 11, 2014 at 4:00AM

via NYT Science http://ift.tt/1lcMQLt