Why Do Humans Have Butts?

2 302 Shikime 233 mijë

If you've been wondering why we have butts, wonder no more! We have an answer for you.
Hosted by: Michael Aranda
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org
Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:
Silas Emrys, Charles Copley, Drew Hart, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, GrowingViolet, Ash, Laura Sanborn, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, charles george, Alex Hackman, Chris Peters, Kevin Bealer
Looking for SciShow elsewhere on the internet?
Facebook: scishow
Twitter: scishow
Tumblr: scishow.tumblr.com
Instagram: thescishow
Image Sources:


  1. SciShow
    28 ditë më parë

    Well, we accidentally uploaded two videos today and they’re both about butts and I feel like that says it all. Anyway, support us on Patreon.

    1. Gal Grünfeld
      Gal Grünfeld
      26 ditë më parë

      One for each cheek.

    2. CDA1989
      26 ditë më parë

      Everything butt truth. :-D

    3. KaritKtana
      26 ditë më parë


    4. Jeheh Hejdhdh
      Jeheh Hejdhdh
      26 ditë më parë

      I feel like butts being made to resist the impact of running is questionable, because if it was the case and we hunted that way then men would have bigger butts, but they are generally small

    5. Sistielle
      26 ditë më parë

      Uhhh are you bummed about it?

  2. Michael H
    Michael H
    Ditë më parë

    I don't have a butt. Am white guy.

  3. Shreyas Shankar
    Shreyas Shankar
    2 ditë më parë

    It gives us cushions so we may sit for longer and think more detailed thoughts. We are also the only species to willingly shift between fast and slow twitch muscles. So it is useful for physical and mental purposes.

  4. jeff card1A
    jeff card1A
    3 ditë më parë

    so we can shake them to a funky beat. simple.

  5. Figter of blabla G.A
    Figter of blabla G.A
    4 ditë më parë

    ;) I definitely can’t do that yeah yeah yeah

  6. Anwar
    5 ditë më parë

    To sit.

  7. Mahmoud Nasser
    Mahmoud Nasser
    6 ditë më parë

    Butt, why?

  8. Aleksas Ivanauskas
    Aleksas Ivanauskas
    6 ditë më parë

    Nature knew we'd become gamers all along, plus it's sexy jeje

  9. T U R T L E R A B B I T
    T U R T L E R A B B I T
    6 ditë më parë


  10. Alex V
    Alex V
    6 ditë më parë

    Michael be looking pretty swole. Thicc, broad across the beam, you know

  11. Mia-sau Sehkar
    Mia-sau Sehkar
    7 ditë më parë

    Humans have butts to sit

  12. ivan benitez
    ivan benitez
    7 ditë më parë

    I wanted to thank my butt but someone stole it.

  13. SpunFriedn'baked no.
    SpunFriedn'baked no.
    8 ditë më parë

    we are the "it fallows" of nature

  14. Stanley Denning
    Stanley Denning
    8 ditë më parë

    But, why do women have bigger butts than men?

  15. mzoony alkhidir
    mzoony alkhidir
    9 ditë më parë

    Why tf am I watching this

  16. Kevin Wright
    Kevin Wright
    10 ditë më parë


  17. Shivam Dhamal
    Shivam Dhamal
    11 ditë më parë

    Why don't you have brain?

  18. Rey Of Light
    Rey Of Light
    11 ditë më parë

    All the puns 😂😂😂 I was laughing my ass off several times through this video

  19. Fenriz Nobile
    Fenriz Nobile
    11 ditë më parë

    0:07 THE JOKES MAN!

  20. Shian
    12 ditë më parë

    But are butts leggs?

  21. Skin Bear
    Skin Bear
    13 ditë më parë

    haha "asset"

  22. Joshua Williamson
    Joshua Williamson
    13 ditë më parë

    Lmao who’s all double cheeked up on the thumbnail? 😂

  23. fatehyabali
    14 ditë më parë


  24. Ray Gun
    Ray Gun
    14 ditë më parë

    Because they’re are two types of men and one half wouldn’t exist without butts

  25. Luis Egúsquiza
    Luis Egúsquiza
    14 ditë më parë

    Don't gorillas have big butts too?

  26. Q
    14 ditë më parë

    How do our butts compare to other fast running bipeds like ostriches? Why do they run faster if our butt muscles are comparatively larger? Do differing routes of natural selection play a role? Thank you.

  27. a d
    a d
    15 ditë më parë

    well i’ll be dammed. i have a coworker who explained the big butt theory in regards to evolution. we all laughed and laughed and laughed. Crazy that he said everything mentioned in this video. Now i have to go back and apologize.

  28. Alex Taylor
    Alex Taylor
    15 ditë më parë

    It nice

  29. ThatLooksWhiteBut_IsBlackHispanicGuy
    15 ditë më parë

    Idk, some humans have no ass at all.

  30. BossMan
    15 ditë më parë

    bro scishow you been getting sus my dude like damn that is sus

  31. missquprison
    16 ditë më parë

    Made me think, maybe that's the reason we find them attractive? Good butts == good runner == better hunter?

  32. Thejas S Gatty
    Thejas S Gatty
    16 ditë më parë

    Blinked more frequently in this video

  33. Just Curious
    Just Curious
    16 ditë më parë

    That thick booty and big brain social planning skills is like our viper strike and our ability to make tools is our sharp teeth and claws. We're the most unique predator on the planet. We're just built different

  34. Josiah The Lion
    Josiah The Lion
    16 ditë më parë

    So it has nothing to do with mating? lol

  35. Hex Blackwood
    Hex Blackwood
    17 ditë më parë

    Heel running is only done by people wearing thick soled shoes and might actually be bad for you. If you look at undeveloped tribes or people who choose to live as their ancestors did, you see that they run on the balls of their feet, not their heels. Heel running is a recent development and is unlikely to be indicative of anything evolutionarily selected for.

    17 ditë më parë

    Nah evolution just wanted us to play with them

  37. brian bouf
    brian bouf
    17 ditë më parë

    Not my girlfriend.

  38. Stephen Owesney
    Stephen Owesney
    17 ditë më parë

    Is this the same guy?

  39. kari
    17 ditë më parë

    I actually saw the title of this video and said: "what an excellent question"

  40. Nathan Forrest
    Nathan Forrest
    17 ditë më parë

    So we can make money like Kim Kardashian 🤣

  41. Carpenter Family
    Carpenter Family
    18 ditë më parë

    Gluteus Monstrous

  42. J Neff
    J Neff
    18 ditë më parë

    'Why Do Humans Have Butts?' - To attract other humans, who also have butts.

  43. Clint Countryman
    Clint Countryman
    18 ditë më parë


    1. Fenriz Nobile
      Fenriz Nobile
      11 ditë më parë

      Yeah it's a _Cheeky_ question

  44. Zeldas Champion
    Zeldas Champion
    18 ditë më parë

    So the real title of this video should be why do we have fat asses...I mean assets.

  45. Teresa Mobley
    Teresa Mobley
    19 ditë më parë

    Wait! Wait! Wait! How does not this address the controversial topic of butt being or not being legs????

  46. Caesar Santizo
    Caesar Santizo
    19 ditë më parë

    For us to eat 👁⭕️👁

  47. Kevin Clien Montemayor
    Kevin Clien Montemayor
    19 ditë më parë


  48. Dennis Barber
    Dennis Barber
    19 ditë më parë

    My butt would like to thank all of the girl butts out there. THANK YOU🍑

  49. yogilouie
    19 ditë më parë

    S W O L E

  50. Mr. Medina
    Mr. Medina
    20 ditë më parë

    The real question is.... Is Butt legs?

  51. Yash Arya
    Yash Arya
    20 ditë më parë

    I just pat on my butt...

  52. ash
    20 ditë më parë

    "big butts are pretty uniquely human" so you're saying i'm n-not human!?

  53. Lindsey Campbell
    Lindsey Campbell
    20 ditë më parë

    I had to do physical therapy for bursitis in my knee and a couple of these exercises are focused on the butt. Made me think about the importance of the glutes. Now this video confirms it with awesome puns 😅

  54. Mateo A.
    Mateo A.
    20 ditë më parë

    Hell yeah. This video made me appreciate my butt a lot more than usual

  55. Maxpackts
    20 ditë më parë

    The M. Gluteus Medius is actually most important to walk on 2 feet and to climb steps etc.

  56. SuperPussyFinger
    21 ditë më parë

    Butts have a far greater biological purpose than this. They are central to human arousal.

  57. amrit pandey
    amrit pandey
    21 ditë më parë

    Butts are fascinating Asset of humans.

  58. Catherine Johnson
    Catherine Johnson
    21 ditë më parë

    What about horses? I feel like they're one of the only animals besides us who have obvious and beefy "cheeks." Could it be for the same reasons, or do they serve a different purpose? (besides looking funny.)

  59. Gilbert Evans
    Gilbert Evans
    21 ditë më parë

    Why would evolution grant us such an ASSet?

  60. Ítalo Lucena Vaz
    Ítalo Lucena Vaz
    21 ditë më parë

    Well, the fat on the butts may not have an explanation now, butt sure it helps in sexual selection, even for this day, humans are just obsessed with this thing around our hole

  61. photondance
    21 ditë më parë

    In other words, “What’s a butfor?”

  62. Patrik D
    Patrik D
    21 ditë më parë

    Just chasing someone until they die requires endurance, but very little intelligence, and it being the main driving factor for us to benefit a massive glucose-hoarder (which at 2% of the body total weight alone consumes 1/5 of our required calories) is questionable. Think about that you also have to run home to feed your kids as well, which for at least the first 10 years suck at running a marathon and constantly complains about being tired of running. To know what you can eat in a widespread landscape (identification), how to store different foods between seasons (planning), and teach your offspring these skills requires brainpower. Meat was certainly required to get enough calories, but I find it unlikely to be the driving factor to develop a big brain. Someone in the comment section mentioned squats as a possible reason for the big butt. It could have been that early humans dug for tubers and other starchy foods (would explain the amount of amylase in our saliva) which certainly requires a lot of sitting and standing to dig up and gather when the only tools you got is a stick and your hands. Almost every human is a lazy non endurance runner, but we do like to sit.

  63. Moha Wahe
    Moha Wahe
    21 ditë më parë

    Good buts dubject

  64. Andrei
    21 ditë më parë

    Isn't latisimus dorsi the biggest muscle in our body?

  65. Alexandra MacLachlan
    Alexandra MacLachlan
    22 ditë më parë

    I miss Michael's banana stripe :c

  66. Sand Tribe Gaming
    Sand Tribe Gaming
    22 ditë më parë

    This is literally a channel made to answer our 3am questions😃

  67. Nothing\
    22 ditë më parë

    I can say with absolute certainty that humans probably have butts cuz sitting for long periods without a butt hurts your tailbone and butt bones. I know from experience. =P

  68. Nikki Reigns
    Nikki Reigns
    22 ditë më parë

    To be the peaks to our valley of stench Stench is a weird word, I can't stop looking at it, it doesn't seem real. Anyway, I'm calling butts stench trenches from now on

  69. Nikki Reigns
    Nikki Reigns
    22 ditë më parë

    To gently cradle our food waste dispenser

  70. Nikki Reigns
    Nikki Reigns
    22 ditë më parë

    Humans: watch videos about butts and make puns Also humans: capable of chasing down prey to exhaustion

  71. Olavo Xavier
    Olavo Xavier
    22 ditë më parë

    Prison School already did that lol

  72. Will Davids
    Will Davids
    22 ditë më parë

    Fer sh!ttin

  73. handlemybiz
    22 ditë më parë

    Probably my favorite episode

  74. Jim Wilbourne
    Jim Wilbourne
    23 ditë më parë

    OMG the PUNS

  75. Matthew Mitchell
    Matthew Mitchell
    23 ditë më parë

    It makes cleaning up after a poo a lot more difficult. Did homo erectus have toilet paper?

  76. horse _fukker
    horse _fukker
    23 ditë më parë

    Looking pretty fat bro

  77. Adrian Thoroughgood
    Adrian Thoroughgood
    23 ditë më parë

    Why do humans have butts? Because BUTT IS LEGS! and legs are useful for running away!

  78. SkeletoPedia - Anatomy Education
    SkeletoPedia - Anatomy Education
    23 ditë më parë

    Any idea how quadruped Butts (like Dogs) compared to bipedal animals (like Humans)? I'm guessing humans have more developed glutes, but is an interesting question.

  79. Lev NZt
    Lev NZt
    23 ditë më parë

    1:24 @SciShow "As your heel hits the ground with each stride" That would be true, IF ancient humans were running in Nikes/Puma/..Shoes. Since they didn't (or so I was told) they were coming on ground with their forefeet. As do we when we run without shoes. Everything else hurts our knees and joints in the long run. I was kinda surprised you missed that.

  80. Blue Blood
    Blue Blood
    23 ditë më parë

    But i don't have any. Is it ok?

  81. mdr53229
    23 ditë më parë

    *Sir Mix-A-Lot has entered the chat*

  82. robin luong
    robin luong
    23 ditë më parë

    it is legs then

  83. Allistrata GG4
    Allistrata GG4
    23 ditë më parë

    Cardi B's got mad balance

  84. Damian Campbell
    Damian Campbell
    23 ditë më parë

    Butt is legs.

  85. Mr.Jitterfingers
    24 ditë më parë

    *Sir Mix-a-Lot's "Baby got back" grows louder in the distance*

  86. Enki Aswad
    Enki Aswad
    24 ditë më parë

    Only 20 seconds in and... sooo many puns xD

  87. Zainab 2355
    Zainab 2355
    24 ditë më parë

    I'm watching this cuz i have exams tomorrow

  88. Amethyst Orchard
    Amethyst Orchard
    24 ditë më parë

    without butts, we wont enjoy sitting so much :P thanks, butts!

  89. Sara Solomon
    Sara Solomon
    24 ditë më parë

    The puns are strong with this one...

  90. JavierEch
    24 ditë më parë

    Yo! Getting biggy

  91. Carly Ritchey
    Carly Ritchey
    24 ditë më parë

    Butt is legs!

  92. gobblinal
    24 ditë më parë

    BUT, barefoot running doesn't rely on slamming the heel into the ground. It's more about reaching out with the ball of the foot and pulling yourself forward. It's vastly different from how we running shoes. So, do the gluteus maximus still get used in the same way?

  93. nuttynathan
    24 ditë më parë

    But is butt legs? Is butt legs?!?

  94. Travis Stindt
    Travis Stindt
    24 ditë më parë

    Yes the clapping of them cheeks would scare any prey we chased down knowing they would be caught soon.

  95. livenandlove1980
    25 ditë më parë

    Today's question was brought to you by your local kindergartner

  96. Mavado Roaster
    Mavado Roaster
    25 ditë më parë

    My ancestors didn't come from apes....

  97. Le Family
    Le Family
    25 ditë më parë


  98. Josiah Hockenberry
    Josiah Hockenberry
    25 ditë më parë

    Sir Mix-a-lot has entered the chat: 👀

  99. Josh Henhawk
    Josh Henhawk
    25 ditë më parë

    So many butt puns

  100. john lobo
    john lobo
    25 ditë më parë

    Lmao, gluteus maximus.. Sound like a finishing moves.