Trends in Cognitive Sciences - Human-like social skills in dogs?
email.eva.mpg.de/~tomas/pdf/Hare_Tomasello05.pdf
cool stuff here.
Hare and Tomasello address the theory of convergent evolution between Homo sapiens and Canis familiaris, stating that dogs show a specialized skill for reading human social behavior that is more accurate than even the animals most closely related to us, such as chimpanzees and bonobos.