From Mark Wareing, Ashbourne, Derbyshire, UK
A study suggests fruit flies may prefer to sit on a rotating carousel for pure enjoyment. It could be argued that flying barrel rolls and loops would be more entertaining, if fruit flies like to have fun. Isn’t it more likely that the flies choose the carousel for other reasons? For example, it might be easier to take off and avoid predators due to the airflow on a moving carousel (26 August, p 13).
