“Here we show that bumblebees rely on their own scent marks, which they deposit at their nest entrance while leaving for a foraging trip, to find back home when the visual cues are not sufficiently reliable,” said first author Sonja Eckel, a PhD student at the Department of Neurobiology of Bielefeld University in Germany.

— Read more in Bumblebees Use Scent Marks to Navigate Home at Neuroscience News.