Certain sea turtles that feed along the coast of South America migrate hundreds of miles in open ocean back to their natal south Atlantic island beaches in order to breed. An intriguing hypothesis proposed by marine biologist Archie Carr in the 1980s suggested that turtles in these populations began this migration pattern millions of years ago when the continental coast was much closer to the islands. As the continents drifted, the turtles were forced to migrate farther and farther out to sea. Can you think of a way to use mtDNA to test this hypothesis?

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The Answer of Certain sea turtles that feed along the coast of South America migrate hundreds of miles in open ocean back to their natal south Atlantic island beaches in order to breed. An intriguing hypothesis proposed by marine biologist Archie Carr in the 1980s suggested that turtles in these populations began this migration pattern millions of years ago when the continental coast was much closer to the islands. As the continents drifted, the turtles were forced to migrate farther and farther out to sea. Can you think of a way to use mtDNA to test this hypothesis?

Certain Sea Turtles That Feed Along the Coast of South