How do animals invade new environments different from the ones for which evolution has equipped ... lizards on the Pisgah Lava Flow have now documented this process in meticulous detail.

In reality, evolution is a long-term process that plays out in stages ... a kind of tug-of-war between natural selection and gene flow. The result in the case of the butterflies has been a ...

The biological equivalent is "allopatric speciation," an evolutionary process in which one species ... it is limited by this "gene flow." But gene flow is interrupted if the population becomes ...

Biologists acknowledge the theoretical possibility of such “unexpected twists” in the evolutionary process, but in practice they often conceive of evolution as a solely “uphill” process of ...

This hyper-mutable locus, which arose through a multi-step evolutionary process, exhibited a mutation rate up to 10,000 times higher than that of the original lineage. It enabled rapid and ...

How do animals invade new environments different from the ones for which evolution has equipped them with ... studying the side-blotched lizards on the Pisgah Lava Flow have now documented this ...