Why Are We The Only Humans Left?

  • Published: 26 April 2017
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    In part 2 of our special series on human ancestry, we ask why we are the only surviving branch on the human evolutionary tree. Just 50,000-100,000 years ago, Earth was home to three or four separate human species, including our most famous cousins: the Neanderthals. New research has shown that Neanderthals were not the brutish, unintelligent cavemen that cartoons make them out to be. They were creative, smart, social, and perhaps even had complex language. So why did they go extinct as soon as Homo sapiens moved into their territory? Does any trace of them live on today? Why don’t we have Neanderthal neighbors?


    Papagianni, Dimitra, and Michael A. Morse. The Neanderthals Rediscovered: How Modern Science Is Rewriting Their Story. Thames & Hudson, 2015. http://amzn.to/2oov6GG (Library: http://www.worldcat.org/oclc/923279213)

    Stringer, Chris. “Lone survivors: How we came to be the only humans on earth.” Macmillan, 2012. http://amzn.to/2oIFg3q (Library: http://www.worldcat.org/oclc/855581724)

    Tattersall, Ian. “Masters of the planet: the search for our human origins.” Macmillan, 2012. http://amzn.to/2pOZrKS (Library: http://www.worldcat.org/oclc/733231407)

    Walter, Chip. “Last ape standing: the seven-million-year story of how and why we survived.” Bloomsbury Publishing USA, 2013. http://amzn.to/2pP2liy (Library: http://www.worldcat.org/oclc/872121723)


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Comments • 10 867

  • It's Okay To Be Smart
    It's Okay To Be Smart   2 years back

    It's lonely being the only humans left. Don't you wish we still had some Neanderthal neighbors?

  • G#0st
    G#0st  17 hours back

    Imagine a human and a dog mating and got twins a girl and a boy 😂

    • G#0st
      G#0st  17 hours back


      • Velcranox Naziri
        Velcranox Naziri  2 days back

        Kinda sad we are the only ones left

        • Mike RBLX
          Mike RBLX  2 days back

          what if andertols were still alive

          Plays ALI-A INTRO

          • keananjs
            keananjs  2 days back

            Should of named it neandershort

            • Moorhshroom Productions

              Some of us are part neanderthal. Some people even have a more similar skull shape to a neanderthal or a hominid.

              • DE꙰C꙰R꙰E꙰W꙰S꙰

                Am I the only person who thinks this guy looks like a young Stephen king??!!
                Jeez. Lol

                • Darth Trajan
                  Darth Trajan  4 days back

                  So, they went extinct at least partially due to cultural differences with our species?

                  • Smug Jones
                    Smug Jones  4 days back

                    1:18 looks at picture of Bernie Sanders


                    • TEMC GAMER
                      TEMC GAMER  4 days back


                      • storkman
                        storkman  4 days back

                        Racism would take more forms if we had more human species

                        • Robert Monsivaiz
                          Robert Monsivaiz  6 days back

                          I always thought Neanderthals disappeared due to Toba erupting at VEI 8 about 75,000 years ago. I guess some of them made it to at least the 50,000 year ago mark.

                          • srgreeniii
                            srgreeniii  1 weeks back

                            Of coarse us Neanderthals are still around.

                            Scientists can be so dumb. It is known; and still goes on, when one tribe defeats another they absorbed that tribe. You didn't wipe out Neanderthals. You assimilated us in to your communities.

                            • VasiliskGUU
                              VasiliskGUU  1 weeks back

                              1:30 I’m quite sure it’s not a NY, it’s Moscow subway

                              • TuxDude 24/7
                                TuxDude 24/7  1 weeks back

                                I got my test results and I am 99% Neanderthal.

                                • Juan Ornelas
                                  Juan Ornelas  1 weeks back

                                  Evolution is a lie, so by

                                  • MeshMN
                                    MeshMN  1 weeks back

                                    I am a little uncomfortable with a company collection genetic data - does this bother anyone else?

                                    • Ghala .5.
                                      Ghala .5.  1 weeks back

                                      I bet they r in area 51

                                      • MeshMN
                                        MeshMN  1 weeks back

                                        2:48 Little embarrassed here - some of your graphics use the 'YA' postfix to specify 'years ago' Well for whatever reason my brain was telling me this guy is SO Scandinavian 'ya' ! rofl - sorry - rofl

                                        • Pyro27
                                          Pyro27  1 weeks back

                                          you might be seeing recent descents of Neanderthals due to seeing people that actually look like this 1:33

                                          • Always Lazy
                                            Always Lazy  1 weeks back

                                            Looks like I'm not human

                                            • DVFDrinkOrDie
                                              DVFDrinkOrDie  1 weeks back

                                              That neanderthal DNA we still retain- almost all of it are genes that give us immunity to deadly diseases originally found only outside of Africa - at some point after interbreeding with them, disease in Europe "thinned the herd" and the only people who survived had the neanderthal genes

                                              • Connor Ambrosi
                                                Connor Ambrosi  1 weeks back


                                                • Adrian Dillon-Kopf
                                                  Adrian Dillon-Kopf  1 weeks back


                                                • Connor Ambrosi
                                                  Connor Ambrosi  1 weeks back


                                                  • Adrian Dillon-Kopf
                                                    Adrian Dillon-Kopf  1 weeks back

                                                    noot noot

                                                    • Adrian Dillon-Kopf
                                                      Adrian Dillon-Kopf  1 weeks back

                                                      My step siblings are all neanderthals

                                                      • Connor Ambrosi
                                                        Connor Ambrosi  1 weeks back

                                                        also STARSH WARSH

                                                        • Connor Ambrosi
                                                          Connor Ambrosi  1 weeks back


                                                          • Andrea S
                                                            Andrea S  2 weeks back

                                                            what if they just thought damn he’s ugly and just went right on with their life

                                                            • Brandon Rogers
                                                              Brandon Rogers  2 weeks back

                                                              We will probably evolve to a Galactic race one day, just too far away for us to live to see it. I would say the Neanderthals were the dwarfs of real life.

                                                              • ADAM
                                                                ADAM  2 weeks back

                                                                Vídeo incrível, saudações do Brasil!

                                                                • Mark Wright
                                                                  Mark Wright  2 weeks back

                                                                  If you think that older humans were stupid then your the ignorant one genetically they were smarter and faster then any human alive today

                                                                  • Tim Hall II
                                                                    Tim Hall II  2 weeks back

                                                                    If neathertals had shorter limbs then why does their genes make him taller?

                                                                    • ThePhilosorpheus
                                                                      ThePhilosorpheus  2 weeks back

                                                                      (Confused unga bunga)

                                                                      • Ambili R
                                                                        Ambili R  2 weeks back

                                                                        Fire burns with the help of oxygen. Water has oxygen in it. Then why can't *fire burn when water is poured in it* 👤👤

                                                                        • sasafever
                                                                          sasafever  2 weeks back

                                                                          i think im a neanderthal cuz im stupidus

                                                                          • krikor arslan
                                                                            krikor arslan  2 weeks back

                                                                            What if the evolved into orregatans

                                                                            • kawaiisabel
                                                                              kawaiisabel  2 weeks back

                                                                              *this video is sponsored by 23&Me*

                                                                              Me: uhhhh *looks back to Shane Dawson video*

                                                                              • Nelson
                                                                                Nelson  2 weeks back

                                                                                I think our ancestors just killed our neanderthal brothers for no reason

                                                                                • 3DManShadowland
                                                                                  3DManShadowland  2 weeks back

                                                                                  Darwin was a quack, there were no other humans before us, there were only hominoid creatures. Humans, killed them.

                                                                                  • StarWars R
                                                                                    StarWars R  2 weeks back

                                                                                    sapi en ternak sapi

                                                                                    • Jaynee Monarrez
                                                                                      Jaynee Monarrez  2 weeks back

                                                                                      We can't even handle different skin tones now I can imagine if neanderthals were still alive

                                                                                      • The Light Abyss
                                                                                        The Light Abyss  3 weeks back

                                                                                        Ok, Neanderthal

                                                                                        • nurul sabihah
                                                                                          nurul sabihah  3 weeks back

                                                                                          Are they the real yakjuj makjuj? Any Muslim here?

                                                                                          • thraia cruise
                                                                                            thraia cruise  3 weeks back

                                                                                            where can i check if i have those genese?

                                                                                            • KASSANDRA PASCUA
                                                                                              KASSANDRA PASCUA  3 weeks back

                                                                                              Neadrethal women died giving birth and the men...?

                                                                                              They died in hunting