The Galapagos shark usually hunts near the bottom, feeding on bottom-dwelling fish, but it is also been known to feed on prey from the surface. The fish it preys on include eels, flatheads, groupers, flatfish, and triggerfish. It also feeds on squid and octopuses. In the Galápagos Islands, off the coast of Ecuador, the Galapagos shark has been observed to feed on sea lions and marine iguanas. Occasionally, a large Galapagos shark may feed on other sharks. 