It can be a robot-eat-bee world out there, but bumblebees can
learn to outwit electronics that mimic lurking spiders.
SPONGE ATTACK | A new bee-testing device mimics a close call with a dangerous camouflaged spider. A bee that ignores the yellow-on-yellow spider shape and buzzes close to sip a sugar droplet gets a remotely triggered squeeze from electronic sponges (clockwise starting at top left).
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