Sand strikers, also known as bobbit worms, are aquatic predatory primitive-looking creatures that have no eyes or brain. Even with this lack of characteristics we might see as critical, the worms are savage predators who shoot out from the ground, grabbing passing fish with sharp claws.
The bobbit worm lives in the dirt on the ocean floor. It buries its long body into the ocean bottom and waits for a trigger to attack its prey from stimulus to one of its five antennae. The worms grow to an average length of an estimated three and a half feet, but have been observed to grow as long as ten feet. And with such sharp teeth and quick reflexes when feeding, the worm kills its prey instantly, sometimes even cutting it in half.