
Two decades ago, a Stuttgart zoo imported a lush, bright green seaweed for its aquarium. Caulerpa taxifolia was captively bred by the zoo and exposed, for years, to chemicals and ultraviolet light. Eventually a sample of it found its way to the Oceanographic Museum in...

Two decades ago, a Stuttgart zoo imported a lush, bright green seaweed for its aquarium. Caulerpa taxifolia was captively bred by the zoo and exposed, for years, to chemicals and ultraviolet light. Eventually a sample of it found its way to the Oceanographic Museum in...