According to an international team of paleontologists, a Cambrian fossil arthropod found in China is the earliest known fossil to show a brain. This image shows a nearly intact fossil of Fuxianhuia protensa (Xiaoya Ma / Nicholas Strausfeld) Embedded in mudstones deposited during the Cambrian period 520 million years ago in what today is the Yunnan Province in China, the approximately 3-inch-long fossil, which belongs to the species Fuxianhuia protensa,...
