However, only a small proportion has been replicated across studies, and the prevalence of positive selection as a mechanism of adaptive change in humans remains controversial. (completegenomics.com)
The continuing health of a family organism depends, to a considerable degree, on whether it can make the necessary adaptive changes as it moves from stage to stage. (religion-online.org)
We are now able to look into the brain of an animal and see how nerve cell connections are made or broken, and how that relates to learning or other adaptive changes. (kavlifoundation.org)