Numerous models have been designed to understand how dispersal ability evolves when organisms live in a fragmented landscape. Most of them predict a single dispersal rate at evolutionary equilibrium, ...

In the late 1990s, Amazon launched as an online bookstore, thus becoming an example of disruptive innovation. A disruptive innovation begins with enabling technology, including an innovative business ...

(1) The males of Papilio dardanus are monomorphic, tailed, and non-mimetic. In most of Africa the females are polymorphic, tailless, and unlike the males in appearance. Moreover, most of the female ...

That fashion tip works—in male lazuli buntings—because their blue plumage shows signs of a rarely documented evolutionary pattern called disruptive selection, contend Erick Greene of the University of ...