Study explains how primordial life survived on ‘Snowball Earth’
By Will Dunham WASHINGTON (Reuters) – Life on our planet faced a stern test during the Cryogenian Period that lasted from 720 million to 635 …
primordial
By Will Dunham WASHINGTON (Reuters) – Life on our planet faced a stern test during the Cryogenian Period that lasted from 720 million to 635 …