Oldest Cardiovascular System Found in Ancient Shrimp-Like Creature
Monday, April 7, 2014 - 15:32
in Paleontology & Archaeology
You've heard of having a heart of stone, but this old guy takes it literally.Scientists said on Monday they have found a fossil of a shrimp-like creature that lived 520 million years ago with an exquisitely preserved heart and blood vessels that represent the oldest-known cardiovascular system.