1. Drifting behaviour as an alternative reproductive strategy for social insect workers by Pierre Blacher, Boris Yagound, Emmanuel Lecoutey, Paul Devienne, Stéphane Chameron, and Nicolas Châline Proceedings B Volume 280(1771):20131888 November 22, 2013 ©2013 by The Royal Society

2. Comparison of the drifting behaviour performed by experimental bees. Pierre Blacher et al. Proc. R. Soc. B 2013;280:20131888 ©2013 by The Royal Society

3. Proportions of experimental bees in social and competition colonies that exited their nest. Pierre Blacher et al. Proc. R. Soc. B 2013;280:20131888 ©2013 by The Royal Society

4. Ovarian development of control (white bars) and experimental bees (grey bars, social; black bars, competition) that stayed in their natal colonies. Pierre Blacher et al. Proc. R. Soc. B 2013;280:20131888 ©2013 by The Royal Society