Jonathan B. Losos (born December 7, 1961, in St. Louis County, Missouri) is an American evolutionary biologist, herpetologist and ailurologist.
Later on, in 1989, he received a PhD in Zoology from the University of California, Berkeley (Ecomorphological Adaptation in the Genus Anolis).
After receiving his PhD, he moved to the University of California, Davis in 1990 to become one of the inaugural postdoctoral fellows at the Center for Population Biology.
[2] Most of his empirical work has involved the evolutionary radiation of lizards in the genus Anolis which occur in Central and South America and on islands in the Caribbean.
In 2006, Losos left Washington University to become the Monique and Philip Lehner Professor for the Study of Latin America at Harvard University and Professor in the Department of Organismic and Evolutionary Biology, as well as Curator in Herpetology of the Museum of Comparative Zoology.