To a human, two billion years is an unfathomable interval. But that, a team of European, Gabonese, and American scientists now say, is how long ago a recently discovered hoard of fossils suggests Earth’s first big life evolved — large enough to see with the naked eye, and in a spectrum of forms that tease [...]
See these annular structures? They are 492 million years old and come from Wisconsin. Here are some more. Was there a severe shortage of beer coasters in Cambrian Wisconsin?
Much of what we know about the diversification of body plans that happened starting 540-million years ago (commonly known as the Cambrian Explosion) comes from the famous Burgess Shale formation.
A new study provides substantial support for earlier claims of 520-million-year-old arthropod brain systems, raising interesting questions about the nature of brains, life and intelligence in the cosmos