Repeated convergent evolution has captured the interest of generations of biologists in part because it implies some degree of determinism in evolution, whether through natural selection toward common adaptive peaks or shared evolutionary constraints. Michael studies the degree to which phenotypic convergence is mirrored by convergence across levels of biological organization (i.e. morphological, cellular, and genetic) and at various phylogenetic scales (across populations, across closely-related species, and across distantly-related clades). His work focuses on the radiation of Lesser Antillean Anolis lizards, which display phenotypic convergence in response to similar xeric-mesic environmental gradients across islands. Michael’s work aims to contribute to our broader understanding of the mechanistic origins of diversity and how organisms adapt to their environment.