Dossier
Cambrian explosion
Coverage of Cambrian explosion in the Nexus archive.
- Scientists found a “lost world” of animals that shouldn’t exist yet
Scientists discovered fossils in southwest China that show complex animal life appeared millions of years earlier than previously thought, including early relatives of starfish and ancestors of animals with backbones.
- This tiny claw in a 500-million-year-old fossil just rewrote the origin of spiders
Researchers found a tiny claw in a 500-million-year-old fossil that identified Megachelicerax cousteaui as the oldest known spider relative, pushing back the origin of spiders by 20 million years.