Published Nov 10, 2026 11:32 AM EST A 28-year-old man got a little bit more than he bargained for after a life-saving brain surgery. Karl (last name withheld for privacy) sees features of his grey tabby cat, Luna, on the human faces he encounters throughout the day. He’ll see Luna’s almond-shaped eye sockets, enlarged pupils, or stripes on humans, if her face is the first one he sees in the morning.