Domestic dogs inherited complex behaviors, such as bite inhibition, from their wolf ancestors, which would have been pack hunters with complex body language. These <answer>sophisticated forms of social cognition and communication</answer> may account for their trainability, playfulness, and ability to fit into human households and social situations, and these attributes have given dogs a relationship with humans that has enabled them to become one of the most successful species on the planet today.:pages95-136
What may make dogs have the ability to be trained by, play with and fit in with people?
sophisticated forms of social cognition and communication