Are We All Related?

This is part 3 of our special series on Human Ancestry!
↓↓↓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.

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REFERENCES:

Chang, Joseph T. "Recent common ancestors of all present-day individuals." Advances in Applied Probability 31.04 (1999): 1002-1026.

Jorde, Lynn B. "Genetic variation and human evolution." (2003).

Rohde, Douglas LT. "On the common ancestors of all living humans." (2003)

Rohde, Douglas LT, Steve Olson, and Joseph T. Chang. "Modelling the recent common ancestry of all living humans." Nature 431.7008 (2004): 562-566.

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson
Producer/editor/animator: Andrew Matthews
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM

[besmart]

🎶We are family…🎶

Have you watched the rest of my human ancestry series? Part 4 comes out next week!

[HerpBerpErpetyDerp]

Wars are just intense family arguments.

[coltmills]

Pros: I'm related to everybody
Cons: I'm related to everybody

[rubbaduck]

Everyone’s chill til Mr. Beast says he’s giving 100$ to everyone that’s related to him

[Dwagonfwuit]

“Wanna go on a date?”
“Ew no your my 172794846627446683th cousin Jeremy!!”

[loveriiz]

son: am I adopted?
parents: no.. we’re related, but distance..

[insert_username]

*When you realize that you're related to Stalin*

"I serve the Soviet Union"

[NiccoloDante]

Shout out to all my aunts, cousins, uncles, grandpas, grandmas, nephews, and nieces

[AM-xeiq]

We all owe a shout out to this one woman for Mother’s Day.

[alex-fsyt]

"Don't talk to strangers on the internet!"

Me: don't worry, they're family.

[TheFirstDex]

So if you're adopted you're just living with distant family

[the_dionysus_cabin]

Can't wait to see all of my 8.1 billion family members at the next family reunion! I promise I'll bring the Oreos this time...

Also, R.I.P. to the 35.7 million relatives that we have lost so far this year, we will never forget you <3

[Icehowl]

01:26 I love how "Djingis Kahn" is a mathematical factor XD

[dantedash]

all 7.7 billion of us should make a family group chat!

[ningen_shikakuu]

**in a concert**

Me: can i go on stage
Security: no
Me: *BUT HE'S MY COUSIN*

[mvm]

everyone needs to watch this video everyday, were a human family

[breeze]

Daughter: Am I adopted?

Dad: Well yes, but actually no.

[DoodleDoes_Stuff.]

K!dnapper: Get in the van!
Me: You’ve got it, 1070925th cousin! I trust you since you’re family!

[PoliceRex]

This is a question I always wanted to be answered! THANK YOU!

[notrxses]

Teacher: How many family members do you have?
Me: *7.7 billion*