The turtle shell and skulls were drawn manually ... I tried experimenting with different scales and extents for each map, depending on the distribution of the species, but then it became difficult ...

Sea turtles navigate using Earth's magnetic field like a GPS. Scientists found they learn and remember magnetic locations.

This map and an internal magnetic ‘compass’ rely on distinct mechanisms, implying that turtles have two magnetic senses. We developed a magnetic-coil system that could replicate the magnetic ...