Evolution resulting from small specific genetic changes that can lead to a new subspecies

WordNet Word definitions in WordNet
n. evolution resulting from small specific genetic changes that can lead to a new subspecies

Wiktionary Word definitions in Wiktionary
n. small-scale changes in the history of life, such as changes in allele frequencies in a population (over a few generations); also known as change at or below the species level.

Wikipedia Word definitions in Wikipedia
Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation , selection ( natural and artificial ), gene flow , and genetic drift . This change happens over a relatively ...