The remarkable abilities of birds to navigate using Earth's minute magnetic field are now widely believed to depend on a biological quantum compass. Share on Facebook (opens in a new window) Share on ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Pigeons can sense Earth’s magnetic field by detecting tiny electric currents in their inner ears, a team of researchers suggests. Such an inner compass could help to explain how certain animals can ...