SciShow explores the unexpected. Seven days a week, Hank Green, Michael Aranda, and Olivia Gordon 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!

The Secret Language of Elephants

The Secret Language of Elephants

2 өдрийн өмнө

The Oldest Shipwreck in the World

The Oldest Shipwreck in the World

4 өдрийн өмнө

Hotter Than Death Valley | Weird Places
5 Weird Things Your Blood Can Tell You
The Male Biological Clock

The Male Biological Clock

15 өдрийн өмнө

There Are More Than Two Human Sexes
Why Don't All Birds Fly in V Shapes?

Why Don't All Birds Fly in V Shapes?

11 өдрийн өмнө

What Your Family History Can’t Tell You
Carnivorous Sponges - So That's a Thing
The Freezing Dunes of Northern Canada
What If Earth Picked Up a Second Moon?
Poor, Misunderstood Poison Ivy

Poor, Misunderstood Poison Ivy

21 өдрийн өмнө

How Much Data Can Our Brains Store?

How Much Data Can Our Brains Store?

21 өдрийн өмнө

That’s Probably Not a Spider Bite

That’s Probably Not a Spider Bite

22 өдрийн өмнө

Your Cat Questions Answered! | Compilation
Carcolepsy: Why Do We Get Sleepy in Cars?
I Can't Believe It's Not Wood

I Can't Believe It's Not Wood

29 өдрийн өмнө

Why Do Humans Like to Get High?
How Big Can Black Holes Grow?
Firehawks: Nature's Arsonists
The Real Story of John Snow

The Real Story of John Snow

Сарын өмнө

Do You Need 10,000 Steps a Day?
The Mystery of the Black Diamond
The Deep-Sea Snail with an Iron Shell
How Tall Can Mountains Get?

How Tall Can Mountains Get?

2 сарын өмнө

Why Can't We Farm These Foods Yet?
5 Types of Awesome Glass Made by Nature
Why Lizards Don't Run Marathons

Why Lizards Don't Run Marathons

2 сарын өмнө

These Wasps Throw Awesome Parties
Abilities Evolution Took From Us
6 Parasites That Live INSIDE Cells
Can a Hot Drink Cool You Down?

Can a Hot Drink Cool You Down?

3 сарын өмнө

There Are Millions of Blood Types
5 Delightful Color-Changing Minerals
Most Metabolism Boosters Are BS

Most Metabolism Boosters Are BS

3 сарын өмнө

  1. Ola Lustig

    Ola Lustig3 минутын өмнө


  2. Angela Lloyd

    Angela Lloyd4 минутын өмнө

    Caffeine withdrawal is a recognized disorder in the DSM-5 so yes it is a REAL thing that lasts for months and can be debilitating based on your average daily consumption over a period of time. When you reset your normal levels you constantly live at then make a sudden shift it causes havoc with your system for any chemical disruption and caffeine is no different, not to mention it's the number one most abused drug in the world and our toddlers drink it!! Please educate yourself on these topics and others. Don't just watch 1 video and think it's right because this one is completely incorrect. I'm a nurse and I know from living on caffeine first hand!

  3. Von duMozze

    Von duMozze5 минутын өмнө

    Much more interesting than "Elephant Talk" by King Crimson.

  4. Богдан Неизвестный

    Богдан Неизвестный8 минутын өмнө

    2016: MNgos: Too early to show it in the recommendations. 2017: Still early. 2018: NOPE, I SAID. 2019: HEY DUDE! I HAVE BRAND NEW VIDEO YOU SHOULD WATCH!

  5. EliyahRose Nkranz

    EliyahRose Nkranz11 минутын өмнө

    Did they say Thailand? I’m from Thailand

  6. Punkrawk

    Punkrawk12 минутын өмнө

    Imagine being the dude who's like "Yeah, we need to account for the inevitable flood due to climate change," but then deciding to go ahead and build a mile-high tower that only the wealthiest 0.001% of human beings will ever touch anyway.

  7. Jaimie Martin

    Jaimie Martin14 минутын өмнө

    Watching this while drinking beers.

  8. Doug Graves

    Doug Graves14 минутын өмнө

    your septum is a deviant!

  9. Michael Scheel

    Michael Scheel25 минутын өмнө

    hasn't researchers documented that giraffes were communicating in the same audio range and getting the same mileages with theirs?

  10. A Leo

    A Leo26 минутын өмнө

    Thumb down dude you need more pictures.

  11. Jasmine Flores

    Jasmine Flores33 минутын өмнө

    So cool

  12. Alex Bones

    Alex Bones36 минутын өмнө

    Hank Green may be a left winger coming at the sex question from a progressive stand point, and promoting a left wing message throughout the video, but the actual facts in this video support the right wing view that biology determines sex. Hank perfectly explains and proves this point with the various examples of sexual anomaly's he goes into, He explains how the sex of a person is completely determined by their biological composition including their chromosomes, hormones, gonads or genitals. Then he explains how chromosomes determine sex, and He shows that changes in chromosomes can lead to sexual anomaly's. Which are these rare sexual conditions of biological nature that are disorder, syndromes, these outlier sexual conditions can cause both male and female genitalia to develop, a mix of male and female characteristics, sterility, retardation, deformed genitalia .etc These sexual anomalys are largely harmful . They show the superior XX and XY binary system to be a vastly more successful system of sexual selection and healthy growth, the binary is clearly the way nature intended human beings to develop sexually, this is the natural mechanism of sexual determination and healthy sexual development. Here is the defintion of a spectrum: A spectrum, is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. There is simply no supporting evidence of a continuum of infinite possible sexes that cover male and female including all possible variations of male/female hybrid in between the two binarys, this is nonsense there is no infinite variations of sexes, and there is no possible way to become said variations in a healthy consistent manner. This video does not show any evidence of a spectrum of human sexes, this is an ideological term that is bandied about by the left regarding gender spectrum theory usually, the use of this term is unscientific and very incorrect. There is no sex spectrum, there is only a sex binary, anything outside the optimal XX or XY chromosome binary system is a biological mistake which will lead to genital deformity, disorder, retardation and strange sexual anomaly's. The only healthy, consistent sexual development strategy is the chromosomal binary selection system (XX, XY, male, female) this is an automatic process that engages the DNA to start the optimized sexual development program.

  13. Rob Abramz

    Rob Abramz38 минутын өмнө

    The ship being shown is not the ancient wreck, but is the SS Thistle Gorm, an armed merchant ship that sunk October 6, 1941. That was very confusing as I was listening because of all the modern building technology showing while your talking about an ancient vessel. Please edit this video to explicitly state that this is just showing what the photogrammetry technology could show. Not what it did show for the sunken Ancient Greek vessel actually looked like!

  14. Azphreal

    Azphreal40 минутын өмнө

    Or get the Hulk to punch it lol.

  15. Light 5

    Light 544 минутын өмнө

    Oh this is something i learned but after awhile it doesn't matter it over simplifies humans and over taxis our brains i don't want to ask their sex takes up too much time too much energy its better to do what i do nowadays just keep to yourself people today love to gloat about their sexuality and gender even the month they are born so they feel special thats fine but let you say sir around a manly looking ... person and you will hear about it till the end of your shift and then some I just don't talk unless around friends Perhaps this is best

  16. bwvids

    bwvids46 минутын өмнө

    Easiest fix: 1) keep the “ear buds” ends together with a clip (on some iPhone cables) so it is 1 string vs “Y” string and 2) roll up from audio end in the center with buds on the outside of coil. That DRASTICALLY minimizes knots and eases unraveling.

  17. Tfue

    Tfue47 минутын өмнө

    I need to forget 1 guy 1 jar

  18. Stephen Gillie

    Stephen Gillie48 минутын өмнө

    African Union HQ in Addas Ababa is going to have to move, before they get flooded.

  19. Joshua Wise

    Joshua Wise49 минутын өмнө

    Settings --> Playback Speed --> 0.75 :D

  20. Alejandro Barreto

    Alejandro Barreto49 минутын өмнө

    Play this video at .5 speed. *Spoiler:* He sounds drunk AF. xDD

  21. Zes

    Zes50 минутын өмнө

    wrg, any be any interesx, coolx etc no matter what

  22. Sleeve Of Wizard

    Sleeve Of WizardЦагийн өмнө

    I can believe hormones. I know a woman with autistic male child. She eats crap. High fat. Animal has to die whenever shes hungry. Sleeps 12 hrs a day. No exercise. No fruit n veg. No sunlight. No fresh air. Complains. I'm sure her hormones are screwed...🤔

  23. Olusola Adegbite

    Olusola AdegbiteЦагийн өмнө

    This is what science fiction is all about

  24. gartner10112

    gartner10112Цагийн өмнө

    Fun-jai. Lol

  25. Jake Zepeda

    Jake ZepedaЦагийн өмнө

    Inb4 copystrike by elephant

  26. guifré mampel

    guifré mampelЦагийн өмнө

    what can they smell

  27. Wutdoesthefoxsay

    WutdoesthefoxsayЦагийн өмнө

    2:36 ur welcome

  28. Alexander Campbell

    Alexander CampbellЦагийн өмнө

    Transphobes die mad about it!

  29. Marcus Phillips

    Marcus PhillipsЦагийн өмнө

    It's thought that T-rexes spoke like this, but even louder.

  30. Dave Kirkeby

    Dave KirkebyЦагийн өмнө

    This might be the oldest *intact* Shipwreck in the world. According to Wikipedia the oldest shipwreck in the world is this: Link to a piece of Greek pottery that has an image of a ship that is similar to this one:

  31. samiamrg7

    samiamrg7Цагийн өмнө

    I think I remember an episode of “House MD” where the big twist was that the patient turned out to have complete androgen insensitivity and so appeared female but had underdeveloped testes hanging around inside of them, and that this was somehow related to whatever mysterious ailment they were suffering from.

  32. snoןnǝɯǝɯ

    snoןnǝɯǝɯЦагийн өмнө

    yes I knew my gender which is a Toyota Corolla was accepted by scientists

  33. snoןnǝɯǝɯ

    snoןnǝɯǝɯЦагийн өмнө

    The reason why dogs can’t eat chocolate is because they are already too sweet.

  34. AleXanDraPR369

    AleXanDraPR369Цагийн өмнө

    We often comment about how each other might ‘see’ the world differently, well, elephants hear the world differently And for me, that just add another layer of beauty to Mother Nature

  35. Christopher Gomez

    Christopher GomezЦагийн өмнө


  36. Christopher Gomez

    Christopher GomezЦагийн өмнө


  37. imaGINAtion

    imaGINAtionЦагийн өмнө

    MSG itself is not that bad, but when it goes hand in hand with oily/greasy food like Chinese cuisine, the result will be quiet bad. Eating Panda Express food certainly often causes stomach upset, indigestion, headache or nausea vomiting. It's the oily/grease food in addition to MSG, which clearly explained the complaining of "Chinese Restaurant Syndrome".

  38. imaGINAtion

    imaGINAtionЦагийн өмнө

    MSG itself is not that bad, but when it goes hand in hand with oily/greasy food like Chinese cuisine, the result will be quiet bad. Eating Panda Express food certainly often causes stomach upset, indigestion, headache or nausea vomiting. It's the oily/grease food in addition to MSG, which clearly explained the complaining of "Chinese Restaurant Syndrome".

  39. PlayfullySound

    PlayfullySoundЦагийн өмнө

    Either one is mostly male on the spectrum or mostly female on the spectrum and if you go further it's just called "splitting hairs". One could play the sub-type of sub-type and variation of variation game to infinity technically but if it starts costing money it should probably be of low-priority unless you personally want to pay the money then....get a life.

  40. Kevan Chetty

    Kevan ChettyЦагийн өмнө Says sugar is bad

  41. Yellow Stain

    Yellow StainЦагийн өмнө

    I am triggered by the name Russia, they are ungood

  42. Iroquoisgirl 7919

    Iroquoisgirl 7919Цагийн өмнө

    I loved the salt n peppa reference! "Push it, push it real good."

  43. Dude Guy

    Dude GuyЦагийн өмнө

    So... Genetic dead ends... So it's self correcting over time?

  44. Jewellab0113

    Jewellab01132 цагийн өмнө

    I thought the symbiotic relationship of mitochondria and humans would be in this video

  45. Praxilla's Cucumbers

    Praxilla's Cucumbers2 цагийн өмнө

    Just a quick correction HeroDOTus not HeroTODus (typical anglophone pronunciation: Heh-rod-ott-tus). Otherwise, great point in a great video!

  46. Will Winn

    Will Winn2 цагийн өмнө

    Male & female ..

  47. emteespace

    emteespace2 цагийн өмнө

    Beer emits CO2 and it's the alcohol they used for the study. Did they even consider that the CO2 from the beer might be the cause?

  48. dvxAznxvb

    dvxAznxvb2 цагийн өмнө

    Something appeared from the dark, a sh*t

  49. Sagacious Eagle

    Sagacious Eagle2 цагийн өмнө

    Why is there a large number of dislikes? Religious people?

  50. Ananya Ravikumar

    Ananya Ravikumar2 цагийн өмнө

    I didn’t really need yet another another reason to love elephants - but now I have one :)

  51. Hawk one

    Hawk one2 цагийн өмнө

    Just a reminder that after being up for six minutes, this video already had 500 downvotes. This video, that is 13 minutes long. And that contains 31 sources in its description. Take a wild guess if any of those 500 downvotes came from anyone who'd actually watched it, much less checked the sources.

  52. PaleBear

    PaleBear2 цагийн өмнө

    It's hard to take someone seriously who chooses to have a metal booger hanging out their nose.

  53. Aeturnalis

    Aeturnalis2 цагийн өмнө

    There are 21,000+ bigots out there right now with their fingers in their ears yelling at their phones, "I can't hear you, I can't hear you, I'm still a straight man like god made me, no matter what Hank says." Don't worry, 21k bigots, we support you whenever you're ready to come out of that closet.

  54. Alan L. Simmons

    Alan L. Simmons2 цагийн өмнө

    What a load of deep deep poo

  55. Michael Bernardo

    Michael Bernardo2 цагийн өмнө

    Haha ferric funny.

  56. Robert R.

    Robert R.2 цагийн өмнө

    While you are nice, I want to see the ship not you.

  57. Ripped Torn

    Ripped Torn3 цагийн өмнө

    So some guys fried up and ate some synchronised vulture vomit ?, fair enough all they knew was it was a random meat shower but i still feel that's the main point of that story ?

  58. Flozy

    Flozy3 цагийн өмнө

    Bruh I just need to revise and I can’t cause this one thing is bothering me

  59. Brinx

    Brinx3 цагийн өмнө

    Micro brain can be a problem.

  60. Kaotiqua

    Kaotiqua3 цагийн өмнө

    As much as I love the Bros. Green, the SciShow dismissal of GMO and eco-conscious food practices always makes me grit my teeth. Don't get me wrong- I'm well aware that there's nothing inherently wrong with the splicing of genes, and most reasonable people _wash_ their produce before they eat it. A much bigger reason for the concern with GMOs and with the pesticides and fertilizers widely in use is concern for the ethics and practices of the companies using them. A concern for the environment. A concern for indigenous species. A concern for farmers' rights to their own crops and seeds. No, that fertilizer might not make my tomatoes any worse for _me_ , but what is it doing to the fish? The birds? The native plants? That corn might not be poisoning us, (it's not,) but is it destroying a farmer's ability to maintain his crop season to season? Is the company he is fairly obligated to buy his products from extorting him, by engineering plants that will not produce viable seed for the next season's crops? And if he chooses to buy from some other company, are they going to sue him within an inch of his livelihood because the neighboring farm's pollen was carried into his field by the wind, bees, and wildlife? And if his crop is accidentally cross-pollinated with a terminator crop, will he be damned to lose next year's crop despite his efforts to the contrary? These concerns are not trivial, and they do not deserve to be dismissed as "hippy nonsense" given the current decline of the world's ecosystems.

  61. Roshan Rokaya

    Roshan Rokaya3 цагийн өмнө

    Its work in nepal

  62. EsCosadeJOCS

    EsCosadeJOCS3 цагийн өмнө

    amazing video, keep it up! <3

  63. Cian McCabe

    Cian McCabe3 цагийн өмнө

    I love elephants.

  64. Suedocode

    Suedocode3 цагийн өмнө

    0:45 This means nothing though. If you replay *anything* faster and at a higher frequency (presumably both do the same thing?), you can make anything as noisy as you want. You are squashing the total energy of the wave into something shorter, making it more energy dense. Squash it to a singularity and suddenly elephants are noisier than aircraft!

  65. Trey Jones

    Trey Jones3 цагийн өмнө

    I guess I could have the trash DNA activated and grow a tail. so cool!!!

  66. Purp Haustier

    Purp Haustier3 цагийн өмнө

    Owwie my bwain hurts cuwz it interfews wif my cuwwent wowrld view uwu

  67. Maire Ni Laoi

    Maire Ni Laoi3 цагийн өмнө

    Are u photo shopped

  68. Amor Doyogan

    Amor Doyogan3 цагийн өмнө

    My partner asked me to watch what is the reason why her poop is green and so I watched this. Hearing this too fast talking and I am not that smart enough to understand what he is taling all about cause Im not American and can just slightly undertand that it has nothing to worry about. So I just said, it says its ok and she got to sleep quickly like she did not happen to worry earlier.

  69. mike jones

    mike jones4 цагийн өмнө

    I'm a real life Chewbacca I'm so hairy, I like dreadlocking my back hair, it looks so cool 😊

  70. gowzahr

    gowzahr4 цагийн өмнө

    It sounds like all of these calculations assume monogamous relationships. Is that true? If so, how do estimates change if you assume, for instance, that every woman bears three children, each with a different father?

  71. Philly Sports!

    Philly Sports!4 цагийн өмнө

    How do we know that the fish hang out in caves during the day????

  72. judy churley

    judy churley4 цагийн өмнө

    From a biological point of view, is this true? If 'sex' is seen from a biological/reproductive point of view there is asexual reproduction and sexual reproduction; the point of sexual reproduction is a kind of biological diversity; and the only viable form of sexual reproduction is male and female of a species providing the necessary components. No other pairing of imagined sex or gender can produce any offspring. Are these other 'types' actually genders?

  73. Usama Iftikhar Butt

    Usama Iftikhar Butt4 цагийн өмнө

    wow amazing

  74. Harsh Dhindsa

    Harsh Dhindsa4 цагийн өмнө

    Can use it in missile

  75. Mamu MauMau

    Mamu MauMau4 цагийн өмнө

    Yea but needy, neurotic, insecure fashionistas love buying a little six ounce bottle of "anti-aging serum" with a French name because it is a status symbol. They are already at the mall, A.K.A. their house of worship, so they might as well pop into Macy's and drop forty five-fifty dollars on a bottle. It makes them feel....what girls? How does it make you feel? Like a super model or an actress? You should feel like a fool.....

  76. SpaceCadet

    SpaceCadet4 цагийн өмнө

    Can't wait for my soundwave waifu :-)

  77. Philly Sports!

    Philly Sports!4 цагийн өмнө

    Arent we the definition of an invasive species?

  78. Keith Hargraves

    Keith Hargraves4 цагийн өмнө

    When did the trend start for ladies to shave their arms legs an armpits start?

  79. Charles Lease

    Charles Lease4 цагийн өмнө

    #Hemp #Bamboo

  80. Charles Lease

    Charles Lease4 цагийн өмнө

    Bamboo and hemp are excellent phyto-remediators and grow very quickly.

  81. Kat Martin2016

    Kat Martin20164 цагийн өмнө

    I was not aware Harry Potter had a gender change.

  82. Gimp

    Gimp4 цагийн өмнө

    Excellent vid and I'd also like to know the kind of wood...…..and a most friendly reminder to the lovely presenter, as a grandparent, be careful with all hooped jewelry when holding babies and very young children...….....

  83. Lone Sage

    Lone Sage4 цагийн өмнө

    Been around for 40 years with no ill results you say. I'm old enough to remember 40 years ago. Back then Obesity, Cancer, Diabetes, inability to walk through the store, and so emotionally unstable you needed to have your pet in the store with you wasn’t common. The government officials who approve GMO food once worked for the companies that made them and go back to them later and sit on the board of directors making millions. I’m sure no conflict of interest enters in. I’m sure Monsanto wouldn’t hide the fact if the food was unsafe. Knowing Roundup caused cancer and hiding the fact was just a fluke. I’m sure that the plants being able to absorb more Roundup and not be killed off doesn’t affect the person that eats it. Probably the countries who refuse to let GMO foods into their country just hate America and want less food available for their citizens. I’m sure any tests they have made show the food above reproach and safe to consume.

  84. LexiDizzle

    LexiDizzle4 цагийн өмнө

    When he started describing the plot of Waldo, I thought "Heinlein invented Stephen Hawking?" But turns out Hawking was born 8 months before the story was published.

  85. Ryan Boscoe

    Ryan Boscoe4 цагийн өмнө

    I can tell at 117 db... I'm actually training to get the world record. I'm not even joking

  86. Junior Mynos

    Junior Mynos4 цагийн өмнө

    Life is complicated

  87. Theo Suharto

    Theo Suharto4 цагийн өмнө

    Are you telling me that when I get cut, some cute lolis in my cells are there to heal me ? Suddenly I'm not afraid of getting cut wound anymore

  88. LexiDizzle

    LexiDizzle4 цагийн өмнө

    Do the humours sound like hormones to anyone else? Fluctuating fluids that affect your mood?

  89. Jay Gigidy

    Jay Gigidy4 цагийн өмнө

    When I'm fully on the Male side of the spectrum can I undo that by simply identifying as a female? If I look like Hulk Hogan can i undo that and be female by the simply willing it?

  90. Justine Mesa

    Justine Mesa5 цагийн өмнө

    It is not a secret anymore :(((

  91. Artistic Endeavors

    Artistic Endeavors5 цагийн өмнө

    Everything Apollo is a bad idea. Always has been. Takes a while to figure it out that Apollo is just another name for the devil...true!

  92. Brian Meyrick

    Brian Meyrick5 цагийн өмнө

    4:45 Why in God's teeth are you duping people into believing that the images being shown here are of the actual one found. This is simply disgraceful!

  93. Legace 34

    Legace 345 цагийн өмнө

    Septum piercing looks fuckn stupid. Take it out.

  94. aking032962

    aking0329625 цагийн өмнө

    Keep this host he is good and he doesn't scream or act like an idiot to hear your content. I like your channel information, but your hosts or maybe the writers are questionable, just saying...

  95. Claude Tasquier

    Claude Tasquier5 цагийн өмнө

    Your genetics will also determine the structure of your comment on this video😂😂

  96. kik kaka

    kik kaka5 цагийн өмнө

    94% off !!! #udemy #course for #Data #Science :Data Mining & Natural Language Processing in R Harness the Power of Machine Learning in R for Data/Text Mining, & Natural Language Processing with Practical Examples #coupon #deal

  97. General Durandal

    General Durandal5 цагийн өмнө

    I love learning about nature. Here's hoping humanity's ignorance doesn't doom the planet. Claimant change is real, it's already past the point of no return. Last winter I got over a foot of snow. Every year before that, only an inch or two. The following spring broke all the fire records for the last 3 summers combined. We don't have 10 years to fix this, we need to do it now. The biggest culprits are cars, factories, cows, and humanity it'self. We need more electric cars, over gas cars. We need more green energy. We need less cows, over 40% of the meat goes to waste anyway, just reduces the mount of cows per farm by 40%, less wasted meat. Regulate human reproduction. I doubt anyone would though.

  98. bryn mitchell

    bryn mitchell5 цагийн өмнө

    As soon as a human , whether young and limited as is this guy , or old and set in their ways, like many , Start talking about imaginary beings in the sky [ Gods] They lose Any credibility about anything they have to say .

  99. breimalislobodnoime

    breimalislobodnoime5 цагийн өмнө

    But do they have a proper language? Are there dialects like with whales?

  100. Taste like china had a baby and named it America

    Taste like china had a baby and named it America5 цагийн өмнө

    oh so be like the homeless?