1. Navigational challenges in the oceanic migrations of leatherback sea turtles by Alessandro Sale, and Paolo Luschi Proceedings B Volume 276(1674):3737-3745 November 7, 2009 ©2009 by The Royal Society

2. Trajectories of (a) five leatherback turtles and (b) four surface drifting buoys tracked by satellite in the southwestern Indian Ocean. Alessandro Sale, and Paolo Luschi Proc. R. Soc. B 2009;276:3737-3745 ©2009 by The Royal Society

3. Route of a leatherback turtle tracked by satellite in the Atlantic Ocean between 29 June 2000 and 20 April 2001. Alessandro Sale, and Paolo Luschi Proc. R. Soc. B 2009;276:3737-3745 ©2009 by The Royal Society

4. Graphical representation of the Earth's magnetic field and of the geomagnetic vector describing the field at any given location on the Earth's surface. Alessandro Sale, and Paolo Luschi Proc. R. Soc. B 2009;276:3737-3745 ©2009 by The Royal Society

5. Chart of the southwestern Indian Ocean showing (a) lines of equal intensity (values in nT) and (b) lines of equal declination (values in degrees) of the Earth's magnetic field. Alessandro Sale, and Paolo Luschi Proc. R. Soc. B 2009;276:3737-3745 ©2009 by The Royal Society