Haplogroup K3 is a genetic lineage found in human mitochondrial DNA, which is passed down from mothers to their children. It is part of the larger Haplogroup K, which is prevalent in Europe and parts of Asia. K3 is characterized by specific mutations that help trace maternal ancestry and migration patterns over thousands of years. This haplogroup is particularly interesting to researchers studying human evolution and population genetics. It provides insights into the movement of ancient peoples and their genetic diversity. Understanding haplogroup K3 can help illuminate the history of human populations and their connections across different regions.