Guillermo Friis is an evolutionary biologist interested in the origin and maintenance of biodiversity, inferring evolutionary mechanisms of diversification, and understanding the genomic basis of phenotypic variation. His PhD at National Museum of Natural Sciences in Madrid (Spain) documented neutral and selective mechanisms driving genetic and phenotypic divergence at the early stages of speciation in the radiation of the songbird genus Junco. He currently works as a postdoctoral associate at NYUAD-CGSB (Abu Dhabi, UAE), where his research focuses on studying the evolutionary processes leading to the colonization and adaptation of the gray mangrove (Avicennia marina) to the extreme environmental conditions of the Persian/Arabian Gulf.