Because non-biological processes can produce relatively similar structures and because such fossils have frequently been subjected to advanced alteration and metamorphism, the earliest morphological traces of life on Earth are frequently highly contentious.
New Book Explores the Biology Behind Belief publishersweekly.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from publishersweekly.com Daily Mail and Mail on Sunday newspapers.