This diagram depicts a population consisting of 14 haploid individuals who carry plus or minus alleles at each of four sites in their genome (left panel). In a new environment favoring the plus ...

The genus Rhoadsia is endemic to western Ecuador and northern Peru and includes two described species that differ in body form, size, and the elevations at which they occur. Unfortunately, there is ...

Not only populations from the same geographic region but even those from the same country showed a great deal of variation among themselves, reflecting the deep history and rich genomic diversity ...

Veronica Paulus is a former STAT intern supported by the Harvard University Institute of Politics. Complex regions of the human genome remained uncharted, even after researchers sequenced the genome ...

Trees are crucial organisms in many terrestrial ecosystems. Tree responses to climate variations could influence the global carbon and water cycles considerably and affect the ecosystem services that ...

A new study examines mathematical models designed to draw inferences about how evolution operates at the level of populations of organisms. The study concludes that such models must be constructed ...

Disease and health are the result of a complex interaction between humans and their pathogens. Genetic factors that partly determine host defenses sometimes differ significantly between people and ...