pygmy sperm whale: small sperm whale of warm waters of both coasts of North America
organism: a living thing that has (or can develop) the ability to act or function independently
xeroderma pigmentosum: a rare genetic condition characterized by an eruption of exposed skin occurring in childhood and photosensitivity with severe sunburn; inherited as a recessive autosomal trait in which DNA repair processes are defective so they are more likely to chromosome breaks and cancers when exposed to ultraviolet light