Douglas Emlen

Douglas Emlen (born April 29, 1967) is an evolutionary biologist and Professor of Biology at the University of Montana. Emlen was inducted into the National Academy of Sciences in 2023.

Emlen's research provides insights into the development and evolution of exaggerated male weaponry, such as the horns found in scarab beetles. His work combines approaches from behavioral ecology, genetics, phylogenetics, and developmental biology to understand how evolution has shaped these structures. His projects include an examination of how altered expression of appendage patterning genes contributes to species differences in the shape of horns, and how the insulin receptor (InR) pathway modulates the size of male weapons in response to the larval nutritional environment.

Emlen and his work were featured in documentaries for the BBC (''Nature’s Wildest Weapons'') and NOVA (''Extreme Animal Weapons''), and released his first narrative nonfiction book for middle school readers, ''Beetle Battles: One Scientist’s Journey of Adventure and Discovery'' in December 2019. He is the grandson of John T. Emlen. Provided by Wikipedia