The Death Valley expedition The Death Valley expedition The Death Valley expedition was an 1891 expedition to discover the geographic distributions of plants (phytogeography) and animals in California's Death Valley. It was the first of a series of expeditions funded by an 1890 act of the United States Congress. The expedition included biologists, naturalists, botanists, and zoologists. They produced valuable reports of historic significance in several fields, including ""Botany of the Death Valley Expedition"", "“The Death Valley Expedition: A Biological Survey of Parts of California, Nevada, Arizona, and Utah”", and ""Annotated List of the Reptiles and Batrachians Collected by the Death Valley Expedition in
Death Valley pupfish Death Valley pupfish The Death Valley pupfish ("Cyprinodon salinus"), also known as Salt Creek pupfish, is found in Death Valley National Park. There are two recognized subspecies: "C. s. salinus" and "C. s. milleri". It is endemic to two small, isolated locations and currently classified as endangered. The desert pupfish is a small, silvery colored fish with 6-9 dark bands on its sides. It has an average length of , with a recorded maximum of . The males turn bright blue during mating season, April through October. The pupfish can withstand harsh conditions that would kill other fish: water that