For More Information

What the Dog Knows: The Science and Wonder of Working Dogs  by Cat Warren

http://www.stanleycoren.com/e_intelligence.htm

http://healthypets.mercola.com/sites/healthypets/archive/2011/11/10/human-animal-bond-prehistoric-proof.aspx 

http://www.difossombrone.it/storiaeorigine/main22graffitipreistorici.htm

http://www.abc.net.au/animals/dog_test/default.htm?utm_source=Newsletter 7

http://www.thedogxpert.com/breed_intelligence.html

http://serendip.brynmawr.edu/exchange/node/2323

“Your dog’s life: staying healthy at every stage” by IAMS Veterinarian Service 

http://www.dogbreedinfo.com/articles/speakingdog.htm

http://moderndogmagazine.com/articles/how-read-your-dogs-body-language/415

https://www.google.com/webhp?hl=en&tab=ww#hl=en&q=images+of+dogs+in+ancient+egypt

http://www.africanis.co.za/history.htm 

http://www.youtube.com/watch?v=ROLZ6PPdp-s about images of dogs in the History of Art

http://fox6now.com/2013/09/11/johnson-creek-man-and-cadaver-dog/ about cadaver dogs on 9/11