574 million-year-old fossils reveal a lack of sex delayed evolution for millions of years
Fern-like bodies once covered the seafloor, some stretching as tall as a person. Yet for millions of years,…
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…