Today, with access to heretofore unprecedented data sets for the study of human genetic variation, researchers can exploit the genetic signatures of natural selection using novel analytical methods.

Aa Aa Aa Natural selection, genetic drift, and gene flow are the mechanisms that cause changes in allele frequencies over time. When one or more of these forces are acting in a population ...

So, they began testing it the only way they could — by breeding plants and animals, watching what happened, and doing it ...

Human beings are defying nature. Or at least we’re trying to. For billions of years, species have evolved by natural selection, the process by which genetic mutations that help an organism ...

Natural selection is a natural process that is observable ... This is a demonstrable and repeatable fact of nature, like water freezing. When I put water in my freezer, it loses energy (cause ...

Natural selection was not one of these ... because it made arcane claims about biology but because it suggested that nature’s underlying logic might be surprisingly simple.