Blog Post Image: Brain of World’s First Known Predators Discovered

This photograph and corresponding drawing show the flattened, fossilized trace of the brain of the world’s earliest known predator; the X-like structure in the head denotes the fossilized brain. Two dark round spots represent the optic ganglia with nerves that lead from the eyestalks into the head. The smaller, almond-shaped areas just in front would have innervated the creature’s grasping appendage. The main brain region is in front of the mouth, giving rise to two nerve cords leading down along the animal. Image credit: University of Arizona

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