Loggerhead sea turtle although loggerhead sea turtles cannot retract their heads or flippers into their shells. Sexual dimorphism of the loggerhead sea turtle is only apparent in adults. Adult males have longer tails and claws than females. The males' plastrons are shorter than the females', presumably to accommodate the males' larger tails. The carapaces of males are wider and less domed than the females', and males typically have wider heads than females. The sex of juveniles and subadults cannot be determined through external anatomy, but can be observed through dissection, laparoscopy (an operation performed on the abdomen), histological examination (cell anatomy), and radioimmunological
USS Loggerhead (SS-374) these islands, the enemy shore batteries surprised her with hot fire. Evading the bursts of the Japanese shells through skillful maneuvers, "Loggerhead" escaped undamaged. She arrived at Fremantle on 19 July. The end of hostilities on 15 August found "Loggerhead" two days out of Fremantle heading for the Gulf of Siam on her second war patrol. She put in Subic Bay on 22 August, departed for the United States 31 August via Pearl Harbor, and arrived at San Francisco 22 September 1945. "Loggerhead" was decommissioned at Mare Island Navy Yard 16 June 1946 and was placed in the Pacific Reserve