Brazil fossils reanalysis rewrites the earliest animal life story with shocking microbial evidence

Those tiny makers weren’t animals at all

A Brazilian study has reexamined microscopic fossils in 540-million-year-old rocks and concluded the structures were formed by ancient bacteria and algae, not early animals. Using advanced imaging and chemical analysis, researchers say the preserved cellular details indicate microbial communities in shallow Ediacaran oceans, overturning long-held interpretations of the planet’s earliest life.