Humans have probably changed dog genes in this arena. A new study shows that “even 8-week-old puppies with little exposure to humans can understand pointing and show sophisticated levels of social cognition in other tests. On top of that, the study found that each fluffball’s genetic makeup was a strong predictor of its ability to follow a pointed finger to a hidden treat as well as the pup’s tendency to pay attention to human faces.” – Smithsonian