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evolutionary biology

A lack of sex held back life’s diversity for millions of years

A lack of sex held back life’s diversity for millions of years

The way that Earth’s first animals reproduced held back life’s diversity for millions of years, until stress and competition led to the development of sexual reproduction, which in turn accelerated the pace of evolution Researchers from the University of Cambridge studied fossils from the oldest-known animals on Earth, dating from 574 million years ago, and…

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