I'm guessing Photoshop played a part in this.
The second picture down especially shows signs of poor croppage.

( wuffle, the b3ta bunny 's flea collar isn't working on, Tue 9 Feb 2010, 12:06, Reply)

Not poor croppage, it looks like the cardboard boxes they were originally lured into prior to stacking.
(benzyl, Tue 9 Feb 2010, 20:25, Reply)