Earth’s Earliest Animals May Have Thrived Too Easily to Evolve

Fossils from some of the oldest-known animals on Earth, dating from 574 million years ago (Ediacaran period), suggest that cloning, not competition, dominated the Ediacaran seas, slowing evolution until environmental stress helped drive the rise of sexual reproduction and a burst of biodiversity. The post Earth’s Earliest Animals May Have Thrived Too Easily to Evolve appeared first on Sci.News: Breaking Science News.