What is the molecular clock? Levels of molecular variation could be used, in principle, to estimate divergence times, serving as evolutionary "clocks" that "tick" at different rates. Subsequent ...

The mosaic nature of genomic divergence arises from of the combined actions of multiple, simultaneous evolutionary processes, including natural selection, gene flow, genetic drift, recombination, and ...

In the early days of molecular evolution, one of the most tantalizing findings was the observation that protein sequence change seemed to occur at a rate proportional to the time since the ...

The researchers argue that the transition from the Rhyniophytic Flora to the Eophytic Flora was likely driven by the evolution of divergent life-history strategies within Zosterophyllum and more ...

challenging the widely held notion that physical isolation and selection are the driving forces behind speciation. Image: Wikimedia commons"So much of ecology and evolutionary biology is based on this ...