Loggerhead turtles live and breed in distinct groups, of which some are in the Pacific Ocean and some are in the Atlantic. New evidence suggests that juvenile Pacific loggerheads that feed near the Baja peninsula hatch in Japanese waters 10, 000 kilometers away. Ninety-five percent of the DNA samples taken from the Baja turtles match those taken from turtles at the Japanese nesting sites. Which one of the following, if true, most seriously weakens the reasoning above? ['The distance between nesting sites and feeding sites of Atlantic loggerhead turtles is less than 5, 000 kilometers.', 'Commercial aquariums have been successfully breeding Atlantic loggerheads with Pacific loggerheads for the last five years.', 'Ninety-five percent of the DNA samples taken from the Baja turtles match those taken from Atlantic loggerhead turtles.', 'Loggerhead hatchlings in Japanese waters have been declining in number for the last decade while the number of nesting sites near the Baja peninsula has remained constant.']