Kodamas (木霊): are mythical spirits of Japan, inhabitants of the thick woods. They usually have a human appearance and each individual is unique in appearance and personality. It is said that can occur in non-human forms, and can appear as beautiful or terrible as they wish. Most cases appear to have an adorable look.
Swimming crabs are characterized by the flattening of the fifth pair of legs into broad paddles, which are used for swimming. This ability, together with their strong, sharp claws, allows many species to be fast and aggressive predators.