How did dobzhanksy and Mayr explain the origin of a species?

Theodosius Dobzhansky and Ernst Mayr contributed significantly to the understanding of species origin through the modern synthesis of evolutionary Biology. They emphasized that species arise through a combination of genetic mutations, natural selection, and reproductive isolation. Dobzhansky highlighted the role of genetic diversity and adaptation in populations, while Mayr focused on the importance of allopatric speciation, where geographic barriers lead to the divergence of populations over time. Together, they articulated the mechanisms by which evolutionary processes can lead to the formation of new species.