Evaluate models that demonstrate how changes in an environment may result in the evolution of a population of a given species, the emergence of new species over generations, or the extinction of other species due to the processes of genetic drift, gene flow, mutation, and natural selection.
Using DNA analysis, researchers were able to effectively trace the evolution of HIV backwards in time to find the common ancestor of HIV samples circulating among humans today. Why is that [...]
Researchers have been tracking E.coli through 60,000 generations to answer a fundamental question: How does natural selection work in a constant, stable environment?