Sea Turtles Use Earth's Magnetic Field To Return To Nesting Beaches

New research suggests that sea turtles use a "relatively simple navigation system" involving the Earth's magnetic field to return to the same beaches to lay their eggs, even after venturing across thousands of miles of open ocean without visible landmarks. Writing in Current Biology, an international team of scientists used satellite transmitters to remotely track turtles as they moved to and from nesting sites. They found that turtles find their way back to the same beaches, independent of ocean currents or other impediments...