Sand strikers are also known as hobbit worms. They have no eyes or a brain, but they are savage predators that will attack fish, even if they are poisonous.
They have grappling hooks that shoot out, reacting if their antenna is brushed by a passing meal.
Even though you can only see the top six inches of them, buried under the sand they can grow to be twice as long as an adult man.
Check out the video to watch them hunt, it’s freaky.