The process of speciation allows a single species to diverge into two. Dive into the different versions of this process, including “allopatric speciation” and “sympatric speciation,” and discover how ...

Studies of reproductive isolation have shown that the number of genes that are involved is often large. Between closely related species of Drosophila, the number of such genes might often be in the ...

While Nieto Feliner et al. suggest that the criteria we propose for establishing homoploid hybrid speciation may limit our understanding of the importance of hybridization in evolution, we argue here ...