Scientists have made dead spiders into corpse-bots, launching a new field: “necrobotics.”
. They control how much their legs extend by forcing blood into them. A dead spider no longer has that blood pressure, so its legs curl up. Her team first tried putting dead wolf spiders in a double boiler, hoping that the wet heat would make the spiders expand and push their legs outward. That didn’t work.
See how this “necrobot” gripper, made from a dead wolf spider, picks up another dead spider. The attached syringe pushes fluid in and out of the spider it’s glued to, making the corpse’s legs snap open and shut.In the future, the researchers will coat spiders with a sealant to hold off that decline. But the next big step is to control the spiders’ legs individually, Yap says, and in the process, figure out more about how spiders work.
“That would be very, very interesting,” says Rashid Bashir, a bioengineer at the University of Illinois Urbana-Champaign who wasn’t involved in the new study. A spider corpse itself would probably have problems as a robot, he says, because it won’t perform consistently like “hard robots” and its body will break down over time. But spiders can definitely
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