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 ...

This project is an extension of long-term research led by Dr. Leonardo Campagna that aims to understand the evolutionary mechanisms that underlie the capuchino seedeater radiation in South America.

When choosing a mate, females of different subspecies of Drosophila mojavensis recognize the right mating partners either mainly by their song or by their smell. New species apparently evolve when the ...

Slate takes a break from endless political analysis to tackle a biological question: Can humans have sex with other animals and produce offspring? The answer: "Probably not." Um, "probably"? Oh dear.

Reproductive isolation is a biological process that prevents gene flow between populations or species, thereby maintaining or promoting genetic divergence and speciation. It operates through ...

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 ...