Where Did Viruses Come From?

  • Published: 13 June 2018
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    There are fossils of viruses, of sorts, preserved in the DNA of the hosts that they’ve infected. Including you. This molecular fossil trail can help us understand where viruses came from, how they evolved and it can even help us tackle the biggest question of all: Are viruses alive?

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  • Science and Technology Science and Technology

Comments • 2 919

  • Mandoon
    Mandoon  16 hours back

    I'm simple, am I a virus?

    • Jaydeep Vipradas
      Jaydeep Vipradas  17 hours back

      A. Viruses somehow "knows our genes", not just individual but also as some community.
      B. They can patch our genes.
      A and B together implies that viruses are global phenomenon, not local.
      It appears, during evolution we took shortcuts. Or our consciousness and emotions are so strong that we hurt our genes. This gives opportunities for viruses to patch.
      Evolution of viruses could be emergence. Set of people behaving in certain ways can create vibrations yielding shortcomings at genetic level. As far extent of life can go in the universe, feeble part of the universe could respond to set of vibrations, as nothing goes to waste in the universe. This reaction could be a genetic code yielding viruses. That's why we could be seeing certain community is prone to some viruses and some is immune.

      • Kaiser SwagHelm II
        Kaiser SwagHelm II  1 days back

        1k Anti-VaxTards disliked this work of art!

        • The DDV Show
          The DDV Show  1 days back

          The question of life is a philosophical one, not a scientific one. Yes, viruses are alive.

          A living entity is one that is self-sustaining and whose actions are self-motivated.

          • fadrium
            fadrium  2 days back

            No virus fosil? Well insect traped in amber usually has bacteria and virus traped in it.

            • Petter Say jew
              Petter Say jew  2 days back

              F my sianc teaher i new we yas we wer mamal

            • 天楽
              天楽  2 days back

              So basically....
              We are like virus:
              We can reproduce, but one can not do it alone.
              We can evolve, obviously.
              Produce no energy but wastes a ton.
              No control over internal environment, being bodily or emotional.
              I see a pattern here......

              • JOTM222
                JOTM222  2 days back

                Pathogens in general: *Enters body*
                Immune System: *Tough guy finger snapping*

                • E :3
                  E :3  2 days back

                  I've been asking and looking up forever where STDs originate from and how a person initially gets it (apart from being infected by it via dexual activity). Like are there people who are born with it? Or is it something that develops suddenly initially.

                  • Ben M
                    Ben M  2 days back

                    Do I understand correctly what viruses are and do? Here's my perception: Viruses are self-driven to replicate, and they use external self-powered tools (cells) to manufacture copies of themselves. This allows viruses to stay simpler and be more flexible in taking control of and harnessing more types of external manufacturing resources. Their conservation of energy enables them to more efficiently find and enter cells, direct manufacturing, and leave cells to replicate exponentially. Doing so maximizes their success in propagating their key encoding into perpetuity. The classification of "being alive" requires an entity to be driven to and successful at propagating its key encoding via some form of being "animate" or mobile. The propagation doesn't require consciousness or decision-making. Viruses are driven to and are preeminently successful at replicating themselves. They do so by using adaptation and mobility to leverage external tools and resources. If these things are true, how can viruses not be considered living entities when they are singularly dedicated to replicating themselves just as much as, and more capably than, say, molds are?

                    • James Hudson
                      James Hudson  3 days back

                      6:50 humans can't make energy for themselves. guess we're not alive either.

                      • Electrono9
                        Electrono9  4 days back

                        Where viruses come from starts at 4:45

                        • jaxxstraw
                          jaxxstraw  5 days back

                          First estimate: <500
                          Second estimate: 68,000,000

                          *hired for Microsoft time remaining team*

                          • Patrick Crausaz
                            Patrick Crausaz  5 days back

                            Who's getting a flue shot every year?

                            • これは私たちですRyliB3 GD

                              Like To Not Get Infected

                              • Mr.Kleiner
                                Mr.Kleiner  5 days back

                                We all know viruses came from Umbrella

                                • Thot Slayer
                                  Thot Slayer  5 days back

                                  How do viruses exist before they had things to infect

                                  • Aj Dembroski
                                    Aj Dembroski  5 days back

                                    Is there any thought to the idea that maybe viruses are their own tree of life? A second biogenesis?

                                    • Krazyfart UwU
                                      Krazyfart UwU  6 days back

                                      Can you cut out(CRISPR) an ancient virus gene and it not effect the living organism like cause a mutation or not developing properly at all?

                                      • CYNow8824
                                        CYNow8824  3 days back

                                        Krazyfart UwU depends on if that piece of viral DNA actually does anything or not. There are a few examples of very important genes that originated from viral DNA (from infections millions of years ago), and if you cut one of these out you would cause a problem since by this point it is an important part of our genome. But there are plenty of pieces of viral DNA that are just there, not doing anything and you probably could cut them out without causing any problems, but there wouldn’t be a point to doing that cause they don’t do anything.

                                    • Helljumper
                                      Helljumper  6 days back

                                      What if the brain is a highly evolved virus

                                      • Nathan Miller
                                        Nathan Miller  6 days back

                                        aaahhh.... all life is a virus...

                                        • Subramaniam Chandrasekar

                                          "Scientists believe" I stopped video at this point.

                                          • Bee
                                            Bee  1 weeks back

                                            He had to do it to us.

                                            • Patrick Fitzgerald
                                              Patrick Fitzgerald  1 weeks back

                                              This was so lame I almost died

                                              • Valerija Homcenko
                                                Valerija Homcenko  1 weeks back

                                                Nice video! Thanks!

                                                • donkeykonghero
                                                  donkeykonghero  2 weeks back

                                                  Viruses probably help living cells to evolve quickly.

                                                  • Trigger5.56
                                                    Trigger5.56  2 weeks back

                                                    So a virus is some sort of a parasite

                                                    • WAQUAR AHSAB
                                                      WAQUAR AHSAB  2 weeks back

                                                      Can you create a virus? maybe by collecting dna/rna of different organisms and cover them with protein and place them in a capsule?

                                                      • jupiter
                                                        jupiter  2 weeks back

                                                        What if viruses are the key to cure cancer?

                                                        • F.B.I agent 729361
                                                          F.B.I agent 729361  2 weeks back

                                                          Pandora’s jar

                                                          • Felix Sun
                                                            Felix Sun  2 weeks back

                                                            This guy had a scoliosis, look at his body

                                                            • Kerry Hart
                                                              Kerry Hart  2 weeks back

                                                              Parrasidic reproducters

                                                              • Robert Bright
                                                                Robert Bright  2 weeks back

                                                                This video would be better served by having the audio spoken by a non - hypomanic person.

                                                                • Wolsky Hubert
                                                                  Wolsky Hubert  2 weeks back

                                                                  Virus came from momy virus

                                                                  • Caike
                                                                    Caike  2 weeks back

                                                                    Maybe I'm interpreting something wrong, but the virus first hypothesis doesn't make sense to me. Viruses need other cells to reproduce, so how could they have been first?

                                                                    • Rl Art
                                                                      Rl Art  2 weeks back

                                                                      mimivirus be like:
                                                                      I'm swole cuz of this protein

                                                                      • Jim Fitzpatrick
                                                                        Jim Fitzpatrick  2 weeks back

                                                                        This is a great series. I'm a bit addicted to it! The hot daddy presenting this video is also a bonus. ;)

                                                                        • Mr Letox
                                                                          Mr Letox  3 weeks back

                                                                          Virus is a tik tok gringy video invading your body

                                                                          • Don't call me stupid
                                                                            Don't call me stupid  3 weeks back

                                                                            This Channel is amazing and really informative without trying to be over the top in their explanations for the sake of spectacle, I've been looking for something like this for months :)

                                                                            • vtowerbridge
                                                                              vtowerbridge  3 weeks back

                                                                              Very useful. Thank you!

                                                                              • Devon Ferrier
                                                                                Devon Ferrier  3 weeks back

                                                                                Just an idea.

                                                                                • Devon Ferrier
                                                                                  Devon Ferrier  3 weeks back

                                                                                  Mitochondria could be looked at as a precursor to bacteria but after viruses; Simply because the mitochondrion has it's own DNA Chromosome being however small that it is, and having it's own ribosomes to reproduce it's Genetic material, as well as producing proteins necessary for function?

                                                                                  • Davida DAUSUEL
                                                                                    Davida DAUSUEL  3 weeks back

                                                                                    I must say, that did anyone think of the game Halo which contained the ( flood )?

                                                                                    • Sjs78 00
                                                                                      Sjs78 00  3 weeks back

                                                                                      I tell u where!, eboli=extraterrestrial biological.

                                                                                      • Nico D. Sun
                                                                                        Nico D. Sun  3 weeks back

                                                                                        I just thought of a new horror movie. Virusman has 80% virus DNA instead of 8% and needs to infect other people to gain energy instead of eating.

                                                                                        • Stayr RPG
                                                                                          Stayr RPG  3 weeks back

                                                                                          This video will be viral

                                                                                          • ZOOOPY
                                                                                            ZOOOPY  3 weeks back

                                                                                            Wow. I hope we stop the flu someday..

                                                                                            • ABathRobeSamurai
                                                                                              ABathRobeSamurai  3 weeks back

                                                                                              why are you telling me i have a virus in my genes for sure.....and then saying its probably in you too?
                                                                                              i liked the video,
                                                                                              just think this logic dose not track.
                                                                                              either say we both have it or we both probably have it

                                                                                              • he11b1ade
                                                                                                he11b1ade  3 weeks back

                                                                                                maybe google this very simple and very well known fact?