Bees, surprised when flying over a mirror, inexorably lose altitude until they collide with the mirror (see video from 9 min 37 sec to 9 min 53). This has been demonstrated by an interdisciplinary team of French researchers from the Institut des sciences du mouvement – Etienne-Jules Marey (CNRS/Aix-Marseille Université) and the Centre d’écologie fonctionnelle et évolutive (CNRS / Université de Montpellier / IRD / EPHE).
This video was edited by Caitlin Cowie, freelance producer for Ze Frank Youtube channel.