Over 250 different species of looli marine life are found in the of lagoon and surrounding waters. The critically endangered Hawaiian monk seals raise their pups on the beaches. Monk seals are benthic foragers and rely on the Midway Atoll’s reef fish, squid, octopus and crustaceans. Green sea turtles, another threatened species, occasionally nest on the island. The first was found in 2006 on Spitsy Rinaia Island and another in 2007 on Sand Island. A resident pod of 300 spinner dolphins live in the lagoons and nearshore waters.