>The dolphin's toothy grin masks its suffering and contributes to the myth that dolphins in theme parks enjoy a happy life. In truth, dolphins cannot move their facial muscles to communicate inner feelings like humans can. Dolphins appear to smile even while injured or seriously ill. The smile is a feature of a dolphin's anatomy unrelated to its health or emotional state.

We need to stop assuming as people we're able to tell the emotions of non-humans without specific training/experience.