Skull on White, photo by Harold Davis. View this image larger.

This is a mountain lion skull, acquired from a taxidermist. The original photo was on a black background (far below), and the other three versions (including the version on a white background above) are Photoshop manipulations.

View this image larger.

View this image larger.

View this image larger.

[All images: Nikon D300, 85mm PC macro (roughly, 127.5mm in 35mm terms), 1.6 seconds at f/51 and ISO 100, tripod mounted.]