Ancient DNA research suggests that our non-African ancestors mixed with Neandertals about 50,000 years ago, resulting in one ...

What are ways species exchange genes with each other? Hybridization and gene flow are shortcuts to biodiversity that don’t always involve differentiation. By continuing to study hybridizing ...

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 ...