The predator-prey relationship is amazing, whether on land or in the water. Just like zebras often stand close to lions without displaying any fear, these blacktips seem to sense when the hammerhead is going to attack and when it’s just cruising along in their midst.

Also like a herd of prey animals, when one blacktip bolts—like at the 0:56 mark—the others break into an all-out frenzy to get away from the active predator. Herd mentality, literally.