A scientist used chalk in a box to show that bats use sunsets to migrate

Oliver Lindecke devised a new device that was partly inspired by a snow-covered Berlin street

Soprano pipistrelle bats

WINGING IT  Soprano pipistrelle bats migrate from Northern to Central Europe every August. A newly designed device for studying bat migrations could help uncover secrets of the animals’ travels.

Christian Giese

When it comes to migration science, birds rule.