What is a crab? What significance do crabs play in the world? In Crab, Cynthia Chris discovers that these charming creatures are social by nature, creative problem-solvers, and invaluable members of the environments in which they live. Their formidable physical forms, their hard-to-harvest and quick-to-spoil flesh, and their sassy demeanour have inspired artists and writers from Vincent van Gogh to Jean-Paul Sartre. Cynthia Chris sketches vivid portraits of these animals, tracing the history of the crab through its ancient fossil record to its essential role in protecting its own habitats from the threat of climate change.