Ancient predator's brain: Bad at maths, great at killing

Killing for a living: An artist

Scientists found rare brain fossils of a prehistoric marine predator in China, and its simplicity was surprisingly efficient.

Fossilised remains showing detailed brain structure of a member of a bizarre group of top marine predators more than half a billion years ago were recently described by researchers in the journal Nature on July 16. Surprisingly, analysis of the brain structure shows they may not have been as smart as their prey.