Movie 2
The dorsal stroke reversal of a honey bee as visualized from above. The wings are illuminated by a laser sheet to highlight the wing-wing contact. Slowed down approximately 600 times.
Wings as impellers: honey bees co-opt flight system to induce nest ventilation and disperse pheromones
Journal of Experimental Biology 2017. 220:2203-2209; doi: 10.1242/jeb.149476