Christopher Mah is a Research Associate in the Department of Invertebrate Zoology at the Smithsonian's National Museum of Natural History. He studies the evolution, ecology, and biology of sea stars and their relatives and has completed shipboard field work, including submersibles, in the Hawaiian Islands, Antarctica, the central Pacific near Oregon, Monterey Bay, California, and in the Alleutian Islands. His sea star related research has taken him to Australia, South Africa, New Zealand, Antarctica, and Japan. He also writes the Echinoblog, an echinoderm-related blog, and manages the Department of Invertebrate Zoology's social media channels. Mah received his PhD from the University of Illinois in 2005.