The very, VERY first animals aren’t really talked about much, and that’s a shame. What existed before the Cambrian explosion? What could these first Precambrian Era animals possibly look like? And WHAT is the oldest animal fossil?
The very, VERY first animals aren’t really talked about much, and that’s a shame. What existed before the Cambrian explosion? What could these first Precambrian Era animals possibly look like? And WHAT is the oldest animal fossil?