Torquigener albomaculosus. This amazing species makes incredible underwater art, out of sand! It was a mystery for a long time, nobody knew who was making these weird pop-up underwater crop-circle things, and then we finally discovered that a tiny pufferfish is behind them. But this has lead to more mysteries: How to they do it? And why? Dive into the waters off the coast of Japan on this episode of Species. Bibliography: https://docs.google.com/document/d/1CSF8j9v_ETlAgpG6xcpj1A0zv1SEdqbkWAaSEcU4j9Q/edit?usp=sharing