Bumblebees Solve Problem Using Tool Study in Science

A new study demonstrates that bumblebees can spontaneously solve a complex problem by using a tool, a cognitive feat previously documented primarily in larger-brained vertebrates like primates and crows. The research, published in the journal Science, challenges long-held assumptions about the cognitive limits of insects.

In a series of experiments, biologists presented bumblebees with a challenge modeled on a classic test given to chimpanzees a century ago. An artificial flower containing a sugary reward was placed on the ceiling of a transparent chamber, positioned too high for the bees to reach from the floor and with insufficient space for them to hover beneath it. A small movable ball was also placed in the chamber.

The bees, which had been trained to associate the blue flower with a reward and were familiar with the ball, had never been taught to use the ball as a tool. To access the sugar water, a bee needed to roll the ball directly beneath the flower and then climb on top of it. Researchers reported that a significant majority of the tested bees successfully completed this task on their first attempt.

This is essentially an insect version of the classic box-and-banana...