Sailfish use their rostrums to hunt. Their high speed swimming allows them to easily penetrate large bait balls, where they can swipe their bill to stun multiple fish at once. Sailfish also have a unique hunting behavior referred to as “herding” that is not seen in any other billfish species. By hunting together as a coordinated group, sailfish will descend upon a bait ball and use their massive dorsal fins to keep the bait ball contained. While the prey is being circled, individual sailfish will take turns cutting through the condensed masses and picking off their prey.