When two organisms typically do not interbreed with one another, they are considered different species. But what are the reproductive barriers that isolate one population from another? Hear the ...

abstract: Crosses have revealed the species‐specific, positively correlated intensities of paternally expressed growth enhancer (GE) and maternally expressed growth suppressor (GS), which serve as a ...

There has been a long-standing emphasis in speciation research on describing conditions that may facilitate the build-up of premating isolation when diverging populations are undergoing gene flow. The ...

Experiments were designed to clarify the role of olfactory stimuli in sexual isolation between the closely related and allopatric mice, Peromyscus maniculatus rufinus and P. polionotus leucocephalus.

Social isolation in the fruit fly Drosophila melanogaster, leads to sleep loss, which in turn leads to cellular stress and the activation of a defense mechanism called the unfolded protein response.