Shaving A Fly’s Penis With A Laser

FlyEyes23421
Just a little off the sides please…
Male flies have penises covered with spines and hooks. To figure out what the purpose of those spines are, researchers Michal Polak and Arash Rashed removed the spines to see what would happen.

Their spines are too small to cut off by hand. So the duo used a laser instead, wielding the light with such surgical precision that they could cut off a third of each millimetre-long spine, or the entire structure….

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