phys.org/news/2026-10-algae-fossils-cambrian-explosion-hint.html Algae fossils from Cambrian explosion hint at sophisticated reproductive system
Fossil algae under 1 mm across, dissolved out of early Cambrian rock in South China, carry plug-like lids over openings in their outer shell. The structures hint at a reproductive system that may have let some algae release offspring in a controlled way.
— via Phys.org
