Overview
- Researchers at Finnish universities published a peer‑reviewed study in Science showing naïve buff‑tailed bumblebees learned to roll a small Styrofoam ball beneath an elevated blue cue and climb it to access a sugar reward.
- The team trained bees to associate a blue marker with food, confined them in arenas too shallow to fly, and then observed many individuals spontaneously move the ball into position and use it as a step.
- Control tests were built into the design to rule out simple explanations: barriers, hidden compartments and occlusion trials showed bees still directed the ball toward the reward rather than succeeding by chance.
- Success rates were high across experiments, roughly 70–80 percent in reported trials (for example, 16 of 22 and 23 of 30 in specific variants), while authors note the artificial arena and tight timing leave room for further analysis.
- The authors are now adding slow‑motion video, fine behavioral scoring and possible neural measures to learn how very small bee brains generate flexible, insight‑like solutions and what that means for comparisons across animal cognition.