Everyone On Earth Is Related
Tracing your family tree far into the past presents a conundrum: you'll eventually have more distinct ancestors than people who have ever existed on Earth. This tells us that not all ancestors are distinct! More were shared the farther back you go, and researchers believe that the whole of current humanity's common ancestor could have existed as recently as 2,000 years ago. Geneticists also postulate that 2,000 years in the future, it's likely that Earth's population will be "descended from most of us." We've collected some awesome videos on this topic. Watch them now to learn more.
Key Facts In This Video
If you traced your family tree back 64 generations, it would contain one quintillion separate individuals. 00:35
As early as 300 BC, there was a person alive who was related to everyone on Earth today. 01:55
Each human cell in your body contains 100 times more atoms than there are stars in the Milky Way galaxy. 04:12