The Silky shark feeds mainly on bony fish such as tuna, mackerel, sardines, mullets, groupers, snappers, sea chubs, sea catfish, eels, lanternfish, filefish, triggerfish, and porcupinefish. It's diet also includes squid, paper nautilus, and swimming crabs, and there is fossil evidence of it scavenging on dead whales. Since of their good sense of hearing, and hunting tactics, these sharks are excellent hunters. They usually work together to "herd" groups of small fish to the surface, trapping the fish. When the fish are all tightly packed together, the Silky sharks attack the fish with great speed, and often consume the whole group of fish. 