Anomalocaris was a soft-bodied marine beast that patrolled the oceans over half a billion years ago. Adults grew to a metre long & had eyes on stalks.
The creature also had grasping claws and teeth-like serrations in its mouth that it used to capture and feed on other marine animals. The fossilised excrement of the predator suggests it may have crunched up trilobites, which were up to 25cm long.
Each eye was around centimetres across and contained over 16,000 separate lenses, to give the creature outstanding vision to support its predatory lifestyle.
The ability to spot prey from far away would have influenced the evolutionary arms race that played out in the Cambrian, when animal life became extraordinarily diverse.