Michael Gale Hadfield is an invertebrate biologist and professor emeritus at the University of Hawaiʻi at Mānoa. His research has focused on the larvae of marine invertebrates and native tree snails in Hawai'i. He retired in 2013, but has remained active in research and was recognized in 2023 as one of the top ecology and evolutionary scientists in the U.S. and the world. Source: Wikipedia (en)