Credit: Pixabay/CC0 Public Domain Why do humans have language and other animals apparently don't? It's one of the most enduring questions in the study of mind and communication. Across all cultures, humans use richly expressive languages built on complex structures, which let us talk about the past, the future, imaginary worlds, moral dilemmas and mathematical truths. No other species does this. Yet we are fascinated by the idea that animals might be more