Let’s talk about the results. First of all, they found that bumble bees really like rolling balls. And in fact, one of the bees rolled the balls 117 times over those 18 days. The researchers also found that once a bee explored the mobile ball area, that they preferred going back to it. It was also more common for young bees to roll the balls rather than older bees. And you can see here on the right that what’s been playing while I’ve been talking is some video of the bees playing with and rolling those balls.