SciShow explores the unexpected. Seven days a week, Hank Green, Michael Aranda, Rose Bear Don't Walk, and Stefan Chin delve into the scientific subjects that defy our expectations and make us even more curious!

Sundays - Learn about the amazing topics we can't quite make a stand-alone show about in SciShow List Show!
Mondays - Tune in for a short Dose about our weird world.
Tuesdays - Find answers to our most asked Quick Questions.
Wednesdays - Hank or Michael dives deep into a long-form Infusion episode, or an unscripted talk show or quiz show with a guest!
Thursday - Another new dose about the wonders of the world.
Fridays - Learn the latest in science News.
Saturdays - Get your quick questions answered!

Don't forget to check out our sister-channels SciShow Space, SciShow Psych, and SciShow Kids!


  1. Science Review
    Science Review
    5 orë më parë

    Good info. Also, cancer is not only one disease. And sunscreens and vaccines don’t cause cancer.

  2. Shiro Hira
    Shiro Hira
    5 orë më parë

    Just realized this is Hank. 😃

  3. •¿Beary?•
    5 orë më parë

    Everyone:I DONT WANT FRECKLES me:I want FRECKLES that's my dream

  4. Shiro Hira
    Shiro Hira
    5 orë më parë

    Wait what?! This is Hank???

  5. TheFourthWinchester
    5 orë më parë

    Why would anyone help these creatures when literally most of the people who are watching these videos, including me, eat animals for almost every meal?

  6. Evelyn Kathy
    Evelyn Kathy
    5 orë më parë

    I won’t ever forget this hsv1 situation through dr. akpamu he makes me great .

  7. Ryan’s favorites Van Dyke
    Ryan’s favorites Van Dyke
    5 orë më parë

    Call that electric method for invasive fish species. Homers method

  8. moot toom
    moot toom
    5 orë më parë

    The fan does use BLADE !!! It should be called "hidden blade fan"

  9. Sandip Mandal
    Sandip Mandal
    5 orë më parë

    What the Frick

  10. Cyborg Overlord John
    Cyborg Overlord John
    5 orë më parë

    Steal League of Legends levels of toxicity and then I’ll be impressed

  11. Hi im Ryan
    Hi im Ryan
    5 orë më parë

    Kirby: my true successor

  12. Ferrets united against soul twisters
    Ferrets united against soul twisters
    5 orë më parë

    People are like awww they have big hearts aaaaaaawwwww but someone had to rip there hearts out of their body to find this out ....

  13. Shisno Shiz
    Shisno Shiz
    6 orë më parë

    Imagine using cavitation logic in space to create hyperdrive or warpdrive and even harvest fuel by harvesting the energy from the reaction...

  14. Kaustav Bhattacharya
    Kaustav Bhattacharya
    6 orë më parë

    what do you mean by not humans, I mean ain't they homosepiance ?

  15. Bewino
    6 orë më parë

    really don't like this guys nose

  16. Benjamin Rojas
    Benjamin Rojas
    6 orë më parë

    Bet sons mom do.this had lot og.these symptoms stay safe

  17. Crow Molly Media
    Crow Molly Media
    6 orë më parë

    "letting it know ITS ambush is ruined"*

  18. Oliver Bendrey
    Oliver Bendrey
    6 orë më parë

    who else is here for home learning

  19. Flyboy1960
    6 orë më parë

    What a frickin JOKE.. This freaky chick needs to take the stupid ring out her nose and get a damned education...turmeric is awesome and NOP single food is SUPER.. eating a balanced diet INcLUDING Turmeric is the way to go..

  20. Benjamin Rojas
    Benjamin Rojas
    6 orë më parë

    Very good read ol Bruce Benjamin here god bless

  21. EspressoBug
    6 orë më parë

    I move my ears a lot. Loud sounds or me feeling intrigued usually mean my ears are doing something. I can also use my ear muscles to sort of block outside sounds some and instead I hear more of of a sound similar to wind or something. It was only recently that I found out not everyone can do that with their ears.

  22. Peter Jaspers-Fayer
    Peter Jaspers-Fayer
    6 orë më parë

    @05:29 The quality of the audio changes (different environment and/or microphone) while showing the diagram of the sodium pump. IMHO this is *BETTER* (I find the regular sound has too much treble). Please borrow Hank's Microcosmos microphone :-)

  23. Double Down
    Double Down
    6 orë më parë

    Boats from Africa came to this piece of rock way before “Jesus” was born!

  24. Jenny Jen
    Jenny Jen
    6 orë më parë

    Bread is actually kind of terrible for people too....

  25. EspressoBug
    6 orë më parë

    Huckleberrries taste like a slightly tarte blueberry. It doesn't seem like it would be very hard to make a crossbreed that grew easier and had the desired flavor. It's weird when you learn that something which was never a major deal is the next big thing. Will people be clamoring for crawfish next?

  26. Simon indra
    Simon indra
    6 orë më parë

    5things almost 20minutes.

  27. All Doctor Tips
    All Doctor Tips
    6 orë më parë

    Thanks for share brother

  28. LoneStar Stallion
    LoneStar Stallion
    6 orë më parë

    We evolve constantly - you evolved while watching this video and with every new neural pathway you create. You will evolve again shortly when you get the covid vaccine. Human evolution is a series of conscious choices, will to survive and forced actions

  29. Kartikey Vashishtha
    Kartikey Vashishtha
    6 orë më parë

    Ocean is blue because of Raman Effect and you just explained the same.

  30. atheistmom
    6 orë më parë

    I love these videos and use them for class, but I am really disappointed at the reference to "spatial-visual learner" in the mnemonics section. Learning styles are a myth.

  31. JunPre
    6 orë më parë

    Simps in the comments

  32. CyberV’sʕ⁎̯͡⁎ʔ༄
    7 orë më parë

    I want to forget spoilers ;-; P

  33. ASMR Gaming
    ASMR Gaming
    7 orë më parë

    there is no doubt an abundance of raw materials, metals etc on mars once we get there

  34. Stacey
    7 orë më parë

    Truffles are farmed in Tasmania. It was started from scratch, & only takes 6-7 years from a new tree (presumably farming other things while they waited 6 years).

    7 orë më parë

    Detox premium powder is a herbo-mineral preparation with ingredients like moti pishti, parwal pishti, shukta pishti, giloy satav, akik pishti, gandhak rasayan, tal sindoor, shankh bhasam, sudhyog tab, shwet parpati, yavakshaar. These ingredients help in the detoxification of the body for removing all toxins in a food poisoning patient.

  36. Dejay Rezme
    Dejay Rezme
    7 orë më parë

    Is there a way to generate food using electricity and genetically engineered organisms instead of using LEDs and photosynthesis? I've previously looked into vertical farming and for producing calories the energy costs are way way too high, even using dirt cheap electricity from solar panels. I assume for microalgae it would be better but still not close to being efficient. But if you could use electricity to directly get some microorganism to produce sugars or glucose, you could have the organism use that to produce all the other needed proteins, fats and vitamins a human being needs. At least theoretically. I've looked up microbial electrosynthesis ( and that seems to be how it works. Unfortunately I know way too little.

  37. hans veen
    hans veen
    7 orë më parë

    covid vacine produces a cov proteine which is: a PATHOGEN! It will incorpotate withh the host cell in the membrane. The immunesystem will give a auto immune response to the whole cell. That auto-immune response is giving you the *side effects* . Long term effects is a big question...

  38. jimmy Ryan
    jimmy Ryan
    7 orë më parë

    Photos please

  39. jackson Logan
    jackson Logan
    7 orë më parë

    The wisest thing that should be in every wise individual list is to invest in different stream of income and not depending on the government to bring money especially now the pandemic is really hitting the economy.If you aren't 100% soound in these you should make contact with someone that have good experience and trade history to help you through, someone i will highly recommend is Mr Jeffrey Anthony, his analysis is sound and is trade signals and strategies are the best every individual should follow

    1. Anna Anthony
      Anna Anthony
      6 orë më parë

      Thanks [email protected] Jackson, i will hit him up immediately

    2. Larah Jackson
      Larah Jackson
      6 orë më parë

      + 1 9 7 8 7 4 3 9 0 8 4

    3. Larah Jackson
      Larah Jackson
      6 orë më parë

      Contact details, you can easily get him on what sapp👇

    4. Eric Nora
      Eric Nora
      7 orë më parë

      Yes I'm a living testimony of Mr Jeffrey Anthony

    5. Audrey Gray
      Audrey Gray
      7 orë më parë

      My first investment with Mr Jeffrey Anthony gave me profit of over $24,000 Us dollars and ever since then he has never failed to deliver and I can even say he's the most sincere broker I have known

  40. Rayquaza
    7 orë më parë

    How this guy explains how all of these huge single celled organisms exist: *so basically multiple nuclei*

  41. Blackheartzero, the Underground Song Critic
    Blackheartzero, the Underground Song Critic
    7 orë më parë

    The Ermac of the sea. _"WE ARE MANY. YOU ARE BUT ONE."_

    8 orë më parë

    Damn 4 light years is 24 trillion miles (1 light year = 6 trillion miles)

  43. b p
    b p
    8 orë më parë

    the adventures of huckleberry & blue finn

  44. Nathan Clarke
    Nathan Clarke
    8 orë më parë

    "Prawn Parade" has a better ring to it 😉

  45. VJiffy
    8 orë më parë


  46. Jessica Rayner
    Jessica Rayner
    8 orë më parë

    Had this discussion with my friends last year, realised that I have inner speech and aphantasia (cannot visualise), whereas some of them could picture but had no internal monologue. Blew my mind!

    8 orë më parë

    Right one ● Left one ○

  48. 김일현
    8 orë më parë


  49. areamusicale
    8 orë më parë

    it's like putting microbes in the freezer .... they probably won't do much.

  50. mfaizsyahmi.
    8 orë më parë

    The first steps _[pun intended]_ of shrimp *carcinization*

  51. Jay Jay
    Jay Jay
    8 orë më parë

    I was able to get rid of my herpes virus completely with herbal medication I got from Dr Ozuka, this great man has cured so many people with his natural herbs and now I test negative

  52. sparkimoto
    8 orë më parë

    I just had an idea. Could it be that a Hermaphrodite is actually the result of fraternal twins ( boy and girl ) which have some how completely merged together and developed into one human but one who has double genetics. Genetics shared from both of those twins. And then could also have 2 blood types as well.? IDK.

  53. Valentina Márquez
    Valentina Márquez
    8 orë më parë

    4:49 no “safe natural birth control “ please use birth control unless you want an unplanned pregnancy

  54. Rick Pontificates
    Rick Pontificates
    8 orë më parë

    Yeah, I saw that movie Andromeda Strain. Please don’t bring Martian microbes to Earth

  55. Shuttleman27 C
    Shuttleman27 C
    8 orë më parë

    Is it weird thst I knew of all of these and I can move my ears?

  56. Robert Jennifer
    Robert Jennifer
    8 orë më parë

    Mrs Jane is legit and her method works like magic I keep on earning every single week with her new strategy

    1. Irene Mark
      Irene Mark
      5 orë më parë

      Hello, How much exactly does she make of you in every trade

    2. Haziq Shan
      Haziq Shan
      5 orë më parë

      Wow I can brag about this... Mrs Jane has managed my account in such a way wining is the only standard I know

    3. Ahmed Shan
      Ahmed Shan
      5 orë më parë

      Mrs Jane has brought me out of the wrenches and to a better living through trading options, I encourage newbies to trade with her, Trade with her and remember to share testimonies with others

    4. Joe Cross
      Joe Cross
      5 orë më parë

      13th wining thanks to Mrs Jane, She's really the best, I've made a lot

    5. Ethan Alisha
      Ethan Alisha
      5 orë më parë

      Most people remain poor only because friends and relatives discouraged and advise them against investing and trading forex while the wise ones kept investing and growing higher financially

  57. juko j
    juko j
    8 orë më parë

    After watching all this, I just want a corona virus vaccine! 😳! Man this puts everything into perspective, maybe i just need a hot girl and lots of sex before my time is up! No one will remember me! Eventually, all of us will be forgotten! Only my seed might be spread but no one will know, Even presidents. Even countries will become so obsecure that we will seem like we are in the dinosaur age to future creatures or better and smarter descendants!

  58. Michelle Chaffey
    Michelle Chaffey
    8 orë më parë

    It is safer not to touch the vaccines at all .

  59. Red Corruption
    Red Corruption
    8 orë më parë

    Carb is the ultimate being

  60. HomeboyDino
    9 orë më parë

    My fever dreams are just the same story played over and over but changing in such a slight way each time I don’t notice, they are horrible

  61. WANA channel
    WANA channel
    9 orë më parë

    Is ab+ blood group rare?

  62. Ridire Oíche
    Ridire Oíche
    9 orë më parë

    If your eyes are feeling dry, crush your lacrimal puncta upwards (there will a satisfying squish noise) then blink a few times to spread the lipid water it releases around your eyes. Don't do it to often though, it's like cracking your knuckles it needs time to build back up, that and it's more than likely a bad idea.

  63. Black Forest Ma'am
    Black Forest Ma'am
    9 orë më parë

    I can wiggle my ears!

  64. smartestmoronx19
    9 orë më parë

    Never thought I would se a spider eat a shrimp, yet here we are

  65. MazeMaker4Life
    9 orë më parë

    To be honest, some humans can be very toxic too

  66. Brandon King
    Brandon King
    9 orë më parë

    10:55 is hilarious the way he says it

  67. Mason Vold
    Mason Vold
    9 orë më parë

    I love the line: “there’s also some evidence in rats that it plays a role in alcohol addiction.” Because it makes me think of a rat population in like New York of a bunch of drunk rats running around

  68. Finding Truth
    Finding Truth
    9 orë më parë

    What utter nonsense of trivialization for origin of life!!

  69. zamo.
    9 orë më parë

    where is my shri- oh its walking woa

  70. Black Shadow-X
    Black Shadow-X
    9 orë më parë

    Scishow is no the best or the greatest in fact it is the worst

  71. Mattia
    9 orë më parë

    Eating is technically stealing energy

  72. Black Shadow-X
    Black Shadow-X
    9 orë më parë


  73. Evoke
    9 orë më parë

    who else here because of school?

    10 orë më parë

    Why flies rub their fore limbs, always when it touches the ground?

  75. TheAmiGuito
    10 orë më parë

    the socotra cucumber tree is by the least terrifying plant over there. is just a big, chubby tuber plant.

  76. Whispering Jack
    Whispering Jack
    10 orë më parë

    Iodine.... Ugh

  77. 만시김
    10 orë më parë

    This guy is just my type

  78. Retro Cysper
    Retro Cysper
    10 orë më parë

    2:56 I'm Gonna find that Stripper in Florida.

  79. Donny Fraley
    Donny Fraley
    10 orë më parë

    He came over for really great soup, huh? I think not.

  80. Retro Cysper
    Retro Cysper
    10 orë më parë

    2:56 Gonna find that Stripper in Florida.