From Sapiens:
PARALLEL SOCIAL COGNITION IN HUMANS AND DOGS
This research raises new questions about what brought dogs and humans together in prehistory and how they might influence each other’s development. More than 550 domestic dogs, Canis familiaris, were put through a series of tests based on studies of humans and nonhuman apes. Comparison of the data from all three species revealed patterns of individual differences in cooperative communication between human infants and dogs that were similar—and were not observed in chimpanzees. The researchers conclude that social cognition is better developed in dogs and humans. This raises as many questions as it answers because it is unknown whether the mental processes of dogs and humans work in the same way. More.
“This raises as many questions as it answers because it is unknown whether the mental processes of dogs and humans work in the same way”? Given all the human-chimp similarity rhetoric, surely they somewhat understate the case…
See also: Are apes entering the Stone Age?