Male pregnancy in seahorses may do more than reverse traditional gender roles. It could also influence the way new species form from single populations of these ancient creatures. Studies have shown ...

How do new species form? Like most areas of Evolutionary Biology, research related to the formation of new species - 'speciation ' - is rich in historical and current debate. Here, we review both ...

de Queiroz, Kevin. 1998. "The General Lineage Concept of Species, Species Criteria, and the Process of Speciation." In Endless Forms: Species and Speciation. 57–75. Oxford University Press.

Until recently, the overriding credo for explaining how new species are formed has run as follows: first, a population of organisms splits into several subpopulations; once isolated from other members ...