Top: Comparison of a young (a) with an adult (b) PWD [Portuguese Water Dog]. (c) Comparison of a Greyhound (Left) with a Pit Bull (Right). The adult PWD was shorn to display body shape. Bottom: Five x-ray views of a PWD. (A) Profile of skull. (B) Pelvis. (C) Ventraldorsal view of skull. (D) Fore limb. (E) Hind limb.
©2002 National Academy of Sciences, U.S.A.