Title for ‘Earth’s first animal’ likely goes to simple sea creature
Tuesday, February 23, 2016 - 16:11
in Paleontology & Archaeology
The first animal to appear on Earth was very likely the simple sea sponge. New genetic analyses led by MIT researchers confirm that sea sponges are the source of a curious molecule found in rocks that are 640 million years old. These rocks significantly predate the Cambrian explosion — the period in which most animal […]