Man’s best friend has gone through over 100 years of breed “improvement,” or pure-breeding — but have progressively become more and more unhealthy for the sake of appearance. The “Science of Dogs” blog looks into how pure-breeding has physically affected dogs since 1915, comparing older photos of dogs with recent ones. The Bull Terrier, for instance, now has a mutated skull and a thick abdomen when it once was an athletic, healthy dog.
The Negative Effects of Pure-Breeding in Pictures (Science of Dogs)
December 8, 2013 By Leave a Comment