In search of nectar, a bumblebee must manoeuvre through an obstacle course of foliage—a surprising feat for a stubby insect. This flying skill is due in part to the bumblebee’s awareness of its own form. Researchers trained bumblebees large and small to walk through a tunnel to retrieve sugar water. Every so often, the researchers would place a wall in the tunnel with a gap of varying width. The bee would buzz side-to-side, assessing the size of the opening, then adjust its position so its…
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