A brown sea cucumber (Isostichopus fuscus) in the Galapagos, where populations have fallen by 80% or more. This Endangered species, harvested from Ecuadorian waters, is favored in Asian markets for its similarity in flavor to the Japanese spiky sea cucumber (Apostichopus japonicas). Photo by Rein Ketelaars licensed under the terms of the cc-by-sa-2.0.