Five young purebred bulls mysteriously showed up dead on the ranch this past summer, drained of blood and with body parts precisely removed.

The bull looks like a giant, deflated plush toy. It smells. Weirdly, there are no signs of buzzards, coyotes or other scavengers. His red coat is as shiny as if he were going to the fair, but he's bloodless and his tongue and genitals have been surgically cut out.

What's clear: It isn't bears, wolves, cougars or poisonous plants. Nor were the animals shot.

She and her husband drove concentric circles around the corpse, but they never found any tracks.

And in this dusty country, "everything you do leaves tracks," Davies says.

He remembers his cow lying dead, her udder removed with something razor sharp.

"And not one drop of blood anywhere," Anderson says.