WASHINGTON, July 11 (UPI) -- Researchers in China have discovered rare fossils of early jellyfish suggesting some ancient species lacked tentacles and had "armored" bodies.
Today's ctenophores, or comb jellies, are soft-bodied animals without skeletal structures and generally have non-stinging tentacles used to capture prey. A discovery of six fossils in southern China, however, suggests that early comb jellies were built a lot differently.