We are indebted to a number of photographic contributors for the use of their images on this site and in our marketing. Thanks to all our amateur and professional photographers.

• Rae A. McBryant (tabycat.1@netzero.net) supplied some informal dog photographs.

• Lori and Bill Bowling are experts in dog pulling sporting events. They provided images of their leatherneck K9 team hard at work. Reach them at bowlingusmc@cox.net or visit their web site, www.leatherneckk9s.com.

• Lynn Berker (lab4paws@yahoo.com) teaches dogs to do the craziest things...like catch flying objects. She provided photos of her dogs in hot pursuit.

• Thanks also to anatomical book publisher Lippincott Williams & Wilkins for permission to use their highly-detailed dog illustrations. See their book here.