. >>> steven, i'm just going to call this heebie jeebie tech time. this is from chile. you though that if you take a leg off of a cockroach it will regenerate another leg? >> oh, like the -- well, yeah. a lot of weird animals do that. >> this cockroach didn't feel any leg removal pain. >> because everyone cares about the well being of cockroaches. >> then they used technology to hook this cockroach leg to the human brain. >> can you move the leg? cockroach correspondentin our expert zach. hey, zach. explain exactly what's going on here. they put this device on this guy's head and then he can control the cockroach leg? >> exactly. right now they can move the leg to the left. they can move it to the right, and they can make it curl. >> what would this be used for? >> there are some possibilities for this like maybe prosthetic limbs. this is a lot different because right now they're not connecting it to anything robotic. they're actually connecting it to a real muscle, which is interesting. >> they have another project that's pretty crazy mind control too, right? >> they d