Dogs Use Deception to Get Treats, Study Shows
"Researchers observed the pooches leading the cooperative partner to the box containing the sausage more often than expected by chance. They led the competitive partner to the sausage less often than expected by chance. And here’s where things get really interesting: the dogs took the competitive partner to the empty box more frequently than the cooperative partner, suggesting that they were working through their options and engaging in deliberate deception to maximize their chances of getting both treats."