Dossier
Sponge Evolution
Coverage of Sponge Evolution in the Nexus archive.
- Scientists just solved a 160-million-year fossil mystery “I’ve never seen anything like it”
Scientists discovered a 550-million-year-old sponge fossil that explains the scarcity of earlier sponge remains, as it likely lacked hard skeletal parts. This finding challenges previous assumptions about early sponge evolution and reshapes the search for animal life origins.