Loggerhead turtles are considered a threatened species under the U.S. Endangered Species Act of 1973.
Some loggerheads breed and lay eggs in Japan.
Soon after the breeding season, turtles may leave the area, heading to far away feeding grounds. Some these turtles may swim nearly 11,000 km to areas near Baja California to grow for a number of years before returning to Japan to breed and live. Scientists still don't know exactly how they get there, or how they navigate their return. Dr. Scott Eckert of the Hubbs-SeaWorld Research Institute hopes to learn about loggerhead migration by tracking reintroduced turtles. In a similar study, Antonio Resendez, a sea turtle biologist in Mexico, released two loggerhead sea turtles from Baja California Norte.