We arrived as the dogs were feeding. They fight amongst themselves for bones and scraps; warning growls and nips turn into deep gashes in the flesh and shrieks of pain. But these dogs are great pretenders, and they have learned what to hide and when. Microexpressions may go unnoticed by untrained eyes, but I know who writhes beneath their skin. They know I am another species, one they cannot feed on. They assume I am not their opponent or predator. However, they would never suspect I know their breed so well.