The amazing secrets hiding in your pedigree database by Carol Beuchat PhD, published by the Insitute of Canine Biology is a fascinating, peer-reviewed study about Afghan Hounds.
Although not about Chihuahuas, the data mined through researching 100 years of pedigrees is astonishing and it is well worth a read by anyone interested in the value of knowing what is in a dog's lines and what the data can reveal if you understand what the information is telling you.
