Wildlife officers kept 15 as evidence and the remaining eggs were buried by biologists from the Florida Fish and Wildlife Conservation Commission. During mating season, the female sea turtles surface onto beaches about once every two weeks and lay an average of four clutches of eggs, with each clutch usually containing between 100 and 120 eggs. The eggs usually hatch after about 60 days. The species have been listed as threatened under the Endangered Species Act since 1978. It was not disclosed why the man had stolen turtle eggs. Turtle eggs (from all kinds of turtles, not just soft-shelled ones) are usually eaten raw or very lightly heated, and their taste is said to be more flavorful than chicken eggs.