Are We All Related?

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: This is part 3 of our special series on Human Ancestry! Watch the entire series here ►► ↓↓↓More info and sources below ↓↓↓ In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Basic math tells us that all humans share ancestors. But you’ll be amazed at how recently those shared ancestors lived. Thanks to genetic data in the 21st century, we’re even discovering that we really are all descended from one mother. ----------- REFERENCES: Chang, Joseph T. “Recent common ancestors of all present-day individuals.“ Advances in Applied Probability (1999): 1002-1026. Jorde, Lynn B. “Genetic variation and human evolution.“ (2003). Rohde, Douglas LT. “On the common ancestors of all li