https://www.siliconvalley.com/2020/09/01/watch-elon-musk-show-how-the-neuralink-brain-implant-works-using-a-pig/

Elon Musk promised that he’d show a working demo of his latest technology moonshot, a new kind of implantable chip for the brain, last Friday. And he did, but it wasn’t with a human subject: Rather, it was with a pig named Gertrude.

In a live-streamed event that began characteristically late, Musk unveiled three not-so-little pigs: one that did not have an implant from his brain-computer interface company, Neuralink; one that had been implanted in the past; and Gertrude, who currently has a prototype of the device.