Research in the Galapagos’ Wolf and Darwin Islands has identified mating populations of scalloped hammerhead sharks, including both resident and migrating individuals (who travel up to 1,000 km). The sex ratio of scalloped hammerheads is biased towards females, with males typically occupying the periphery of the aggregation. All identified hammerheads in this photo are female, as is the sea turtle who thinks she’s a hammerhead. Learn more about Galapagos hammerheads