Forms of Expression

If Forms of Experience asks what animals may feel, Forms of Expression asks how they reveal it.

Animals continuously communicate information about themselves and their surroundings. A wolf's howl, the electric pulses of a weakly electric fish, the scent marks of a tiger, the colour changes of a cuttlefish, or the posture of a frightened horse all provide clues about internal states, intentions, and social relationships. Expression allows individuals to coordinate, cooperate, compete, attract mates, avoid conflict, or simply interact with the world around them.

Humans are no exception. Like other animals, we communicate through facial expressions, body language, touch, and vocalisations. Yet human expression has also evolved into remarkably diverse cultural forms—including language, music, dance, visual art, literature, architecture, clothing, and countless other symbolic systems. These forms allow us not only to communicate information but also to share emotions, ideas, memories, identities, and imagined worlds across generations.

Expression therefore exists on a continuum. At one end are ancient biological signals shared across much of the animal kingdom; at the other are uniquely human forms of symbolic culture. Both originate from the same fundamental need: to interact with others and with the environment.

This section explores the remarkable diversity of communication and expression across species—from chemical signals and body language to electric communication, human art, and the many ways living beings make their inner worlds visible.