have a more pronounced influence on Ne than periods of larger population size. Natural selection can produce genetic variation among demes within a metapopulation if different selective pressures ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which ...

The first event that the Grants saw affect the food supply was a drought ... The Grants had documented natural selection in action. While beak size is clearly related to feeding strategies ...

The second point takes on particular significance if we consider the potential for natural selection to influence the frequencies of new mutations. If a population conforms to all other Hardy ...

The early part of the twentieth century saw evolutionary theory embattled by disagreements over Darwin's emphasis on natural selection ... the new mechanisms of population genetics being studied ...

Based on genome datasets spanning two decades, researchers concluded that Chagas disease, a deadly tropical disease caused by a parasite, drove a strong pulse of natural ... a very strong selection ...

Discover the science behind natural selection and evolution. Get the facts on survival of the fittest with ExtremeTech’s comprehensive breakdown.