Lizard
So just to come out with it straight away, some lizards shed their skin from time to time. We know that at first glance this looks like a lizard has eaten another lizard and is slowly swallowing it. Others would say the lizard on the inside is wearing its conquered enemy as clothes.
From whatever perspective you see this image, just know that the fact that lizards can shed skin is really amazing. Imagine if you were able to do that once in a while, all the dirty and wrinkled skin that would come off your face and body. Women would pay thousands for that kind of service.