The loggerhead sea turtle has two pairs of prefrontal plates on the conspicuously large, block-like head. The loggerhead sea turtle's powerful jaws are well suited to eating hard-shelled prey. It feeds on crabs and other crustaceans, mollusks, jellyfish and sometimes fish and eelgrass. Most nesting occurs north of the Gulf of Mexico and Caribbean Sea in temperate waters, although some individuals nest in the western Caribbean. Loggerhead sea turtles also nest along the southeastern U.S. coast, with 90 percent of nests occurring in Florida.
Females come out of the water to lay their eggs on beaches at night.
Sexual maturity is reached in 10-15 years, and the estimated maximum lifespan is 30 years. Loggerhead sea turtles are found globally, preferring temperate and subtropical waters. In the western Atlantic, they range from the Canadian Maritime Provinces south to Argentina. Within its range, this species inhabits warm waters on continental shelves and areas among islands. Estuaries, coastal streams and salt marshes are preferred habitats.