left fossils of the trails they made as they moved through the Precambrian mud. Life was flourishing long before the Cambrian "explosion". The question of how so many immense changes occurred in ...

“It’s a remarkable find, as it places Ecdysozoans in the Precambrian Eon, supporting the theory that this lineage predates the Cambrian explosion. Ecdysozoans are so diverse and occupy so many ...

left fossils of the trails they made as they moved through the Precambrian mud. Life was flourishing long before the Cambrian "explosion". The question of how so many immense changes occurred in ...