Observing praying mantises in 3D glasses hanging topsy-turvey

One approach to try “to understand 3D vision in the praying mantis, the only invertebrate known to have this ability, and compare it with vision in humans” is to equip a mantis with specially-built tiny 3-D glasses, suspend the spectacles-clad mantis upside down from a post, and then monitor that mantis’s response to artificially created […]