The Two People We're All Related To

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Check out Two Cents: Due to an odd quirk of genetics and some unique evolutionary circumstances, two humans who lived at different times in the distant past managed to pass on a very small fraction of their genomes to you. And to me. To all of us. Produced in collaboration with PBS Digital Studios: Super special thanks to the following Patreon patrons for helping make Eons possible: Katie Fichtner, Aldo Espinosa Zúñiga, Anthony Callaghan, الخليفي سلطان, Gabriel Cortez, Marcus Lejon, Anel Salas, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, Svetlana Pylaeva, Colin Sylvester, Philip Slingerland, John Vanek, Jose Garcia, Noah offitzer, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Sapjes, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao. Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Joshua Mitchell, Johnny Li, Jacob Gerke, Alex Yan If you'd like to support the channel, head over to and pledge for some cool rewards! Want to follow Eons elsewhere on the internet? Facebook - Twitter - Instagram - References:


Jessica O. : Host: "She isnt the first woman of our species or the first anatomical human or anyone really special for that matter" Me: What you say about my momma :[

Can't See Me. : Thanks infinitely great grandmother.

jackeysmith19 : so im related to beyonce?

L : Hey cousin scrolling through the comments. ; )

JP Olivetree : It seems like PBS is focusing on human and primate evolution recently, I am loving it

Bleeb : That’s gonna be one big family barbecue

Some Random 15 Year Old : I learn more from this channel than I do at school.

DeeDah : Thanks for keeping my still young mind from sinking into the drudgery of old age.

Turmunhk Ganba : Could you cover the evolution of blood

Justina : They should be teaching this in schools.

troytjuh : I’m always so happy when I get a notification for a new pbs eons video ❤️ Will you guys be able to do a video sometime about the evolution of my favorite animal, the kangaroo?

Muhammed Ali Inamdar : I don’t understand anything he’s saying but I still watched

Alex : Still doesnt explain why africa and south america make a t-rex head when put together. Sorry. Thanks for the vid. You lost me a couple times (since public education failed me hard) but you kept my attention, which isnt easy to do these days. Nicely done. Cheers.

Bryan Liang : Can we have a more focused on the evolution of placental mammals? You have mentioned therapsids and ancestors in other episodes but haven't gone through placental evolution.

LeviAckerman CSGO : "mah boi steve" LOL

Thomas Saldana : "We don't understand why these two individuals left the indelible mark that they have in our genomes." Because if they hadn't someone else would've.

panda bb : So we are all from Africa confirmed

damir prado : Hey could you make a video about the gondwanian terrestrial crocodilomorphs?! Like why they disappeared and it relation with the gondwa breakeup??

Case Draughn : We literally just went over the whole mitochondria DNA thing and migration in my Anthropology class. Are y'all just following along in my anthro textbook?

Yusef Daniel Hassoun Harmouch : How did pregnant mammals manage to survive on the wild? Could you do a video on the evolution of mammals, and why it is better than oviparity Edit: thanks, white knight

Andy Pastuszak : I'd love to know more about super old trees, like the Methusula, the Great Basin bristlecone pine, and, and Pando, the 80,000 year old clone forest.

testman : MAH BOI STEVE

Kyle Amoroso : Like someone else mentioned, Eons has been talking a lot about human ancestors recently. I greatly appreciate it because I never really learned much about this in school! Thanks for the lessons, Eons :)

Mike Towlson : Can you do a video on different blood type?

CelesteofOz : I like how that made some complex ideas fairly simple to understand. Good job.

SummerSong : Hey all my super distance related cousins!

Pedro Marcelino : 6:54 Something very similar was shown in similar study here in Brazil. Most of us, regardless of race, have European Y chromosomes and Indigenous or African mitochondrial DNA, which is due to the fact that Portuguese colonizers would often come without their families and interbreed with the Indians and the black women.

4G12 : Evolution 101: Survival of the Luckiest.

Michael Makeer : Science and history, great combo. The story of Man.

Chris Holdread : The Mitochondria is the warp core of the cell

ุ ุ : IF YOU ARE CONFUSED, 5:50 is the best way to summarize...

John Stewart : So, genetic Adam and genetic Eve lived 60,000 to 120, 000 years apart in time, still in Africa. I read the 1987 1995, I asked Mary Leakey, the famous anthropologist who found H. habilis (1.67 M years old) in Olduvai Gorge, whether she believed the genetic Eve story. She did not. It was an epiphany to stand in Olduvai, next to my Maasai companion, and to realize that we shared a common aunt or uncle...brothers by different mothers. It really IS one planet, one people.

Len Arends : The LAST two people we have EVIDENCE we're all related to ...

RT 66 : Hi Cousins!

yeah oh : iM related to *hit or miss*

Kiwibo : You would make a way better sex ed teacher tbh

Shahabuddin Khan : It was recently discovered that it is possible to inherit mtdna from ur dad as well

Tianna Woodson : This was an amazing video. Thank you.

Laurence : i'd type a lot of greats but then i heard "10,000 generations" and im lazy

Towards the Trees : Great video, it would be great if you guys could do a video on midichlorians. Thanks!

Mary Tocco : Blake, I love everything that you do for eons and scishow and all the other shows. As a host you're great, cadence and tone and flow and humor but I wish you would speak just a tad bit slower. Just a tad. Love u tho.

Celt Gunn : This was a great episode, I truly enjoy EONS so much. You always learn something new. 😊

James Ward-Parrish : I have a question, how do we know that it is only one man and one woman who we all have in common? What if there are other lines that still exist that just haven't had DNA testing yet

mr zed : We are one big unhappy human family

Fire Nation Files : Was there a single, unicellular organism that started life on Earth, or was there more than one created at different times?

ameerul aqmal : Wow, this channel is quite interesting.. subscribe 👍

Hooch Smeeth : If they were alive now, I'd be the favourite grandson.

William Watson : eons gang

Guilherme Marcílio : Man, those episodes about genetics are blowing my mind!! Please more!!