Collective behaviour began half-a-billion years ago, fossils show

Radio France Internationale | Oct 17, 2019 at 6:20 PM
  • Fossils of tiny, horseshoe-shaped creatures that inched along the ocean floor in single-line formations some 480 million years ago reveal the earliest known collective animal behaviour, researchers said Thursday.
  • Group behaviour among animals — schools of fish, flocks of birds, herds of antelope — has been exhaustively studied by biologists, but little is known about when or how it originated.
  • Spiny lobsters — along with caterpillars, which also travel in single file — are distant cousins of A. priscus.