True Facts : The Sand Bubbler Crab

True Facts T-shirts:
(credits and links below)

Huge thanks to:
Fabiane Gallucci, Gustavo Fonseca , Alvaro Migotto
and Maikon Di Domenico, NP Bio Mar, CEBI Mar USP:
for access to the amazing online database
at and footage from Life Between the Grains

Sri Harsha - for inspiring me with a clip!

Matthew Davidson - for the amazing fight scene

Kita M Williams - for filming sand and polychaetes

Natural History Museum And Institute, Chiba, Japan

Jackson Hart Grady
for helping me with the research!

to submit footage:


  1. bellyisis

    bellyisis19 soat oldin

    “Told ya David “! ROFL 🤣

  2. Alice piorel

    Alice piorel21 soat oldin

    2:46 bubbler crabs really be out here teleportin

  3. Mr. sTaNkYy StanKK

    Mr. sTaNkYy StanKKKun oldin

    My name is David in real life

  4. Combustable Lemons

    Combustable LemonsKun oldin

    True facts about Robin Williams

  5. Synthetic Humanoid

    Synthetic HumanoidKun oldin

    Ok, this was pretty good. You tickled me.

  6. YnRemains

    YnRemainsKun oldin

    Haven’t found entertainment in quite a while

  7. King toad

    King toad2 kun oldin

    "When your homies mouth taste like your girlfriend's balls"😩😭

  8. Aubree Brabson

    Aubree Brabson3 kun oldin

    Can you make a video about hermit crabs ?

  9. avman2cl

    avman2cl3 kun oldin

    Boots and socks! 🤣🤣🤣

  10. Dead Inside Gamer

    Dead Inside Gamer4 kun oldin

    Oh gwaaaAAHH

  11. Taurus Visions

    Taurus Visions5 kun oldin

    Poor David. You didnt have to do him like that. Hes doing his best...

  12. Doug Antelope

    Doug Antelope6 kun oldin

    Very funny!

  13. Yu Yama

    Yu Yama6 kun oldin


  14. Marionette King

    Marionette King6 kun oldin

    "Told you David." Lol

  15. SeeMyAudios

    SeeMyAudios7 kun oldin

    Wait! I don’t know what their genitals look like or how they mate!! This video is not done!! 😂😂😂🥲🥲🥲☺️☺️☺️😊😊😊😉😉😉😉

  16. Amaroq64

    Amaroq647 kun oldin

    "And it can get hard to tell what balls have been inside whose mouth already."

  17. owl-girl xo019 of night

    owl-girl xo019 of night7 kun oldin

    Zefrank1: as the day wears off competition for burrows get fierce oh god he throw him that dude's got moves like yoda in the second star wars movie

  18. owl-girl xo019 of night

    owl-girl xo019 of night7 kun oldin

    David on the other hand is a total idiot he's just playing scratchy scratchy in the sand

  19. No Comment

    No Comment8 kun oldin

    There were people in that shot just chilling, ngl i'd be poking my finger in every orifice and ball i saw for science, amateurs...

  20. Enza Futori

    Enza Futori9 kun oldin


  21. BlackCatStories123

    BlackCatStories12310 kun oldin

    Those crabs need to be called "WALL - E bebes."

  22. Lucid Dreamer

    Lucid Dreamer10 kun oldin

    1:32 this is so stupid i love it 🤣

  23. Brenda Harper

    Brenda Harper10 kun oldin

    Pretty fascinating, these tiny, tiny krabs.

  24. Jennifer Walker

    Jennifer Walker10 kun oldin

    There needs to be a true facts about the "boots'nsocks'n" hydromedusae

  25. Squeakyclean Adams

    Squeakyclean Adams10 kun oldin

    And dream of balls💀😂🦀

  26. Emil Müller

    Emil Müller11 kun oldin

    interesting, that zefrank doesn*t consider the new Star Wars movies to be Star Wars movies., because Yoda is apparently in the second worse Star Wars movie in his oppinion

  27. Skatie

    Skatie11 kun oldin

    when i was 5 year old, whenever we go to the beach. i used to put them in a container and captcher them and pour water in it to make it cool or something. then i put the crab in and sand for a home. then i was back home... the crab died. so what i expierince is that,these bubble crabs can hold thier breath in 2 minuets.🤣

  28. justmaeisfine

    justmaeisfine11 kun oldin

    Who’s here because of Ashley? I’m so fascinated 🤯

  29. Samantha

    Samantha11 kun oldin

    These videos are hilarious!

  30. Vince M

    Vince M11 kun oldin

    2:50 *Sand bubbler crab used "throw".* *It's very effective!*

  31. geekdiggy

    geekdiggy12 kun oldin

    Ashley's Adulting Series brought me here.👍

  32. Sirinterweb

    Sirinterweb14 kun oldin

    He made me think microscopic organisms are cute damnit

  33. Jaden Chadwick

    Jaden Chadwick14 kun oldin

    Holy crap, so this is why Crustle learns Rock Wrecker!

  34. Blah Blah

    Blah Blah18 kun oldin

    Dey so fluffeh

  35. Mehul V

    Mehul V21 kun oldin

    I didn’t know we were allowed to watch this in school

  36. Birdy

    Birdy28 kun oldin

    Not sure why, but something about the daily life of the samd bubblers is kinda..... magical

  37. Laura B Gerlach

    Laura B GerlachOy oldin

    darn, love this video but since I send reward videos to my students and there is one reference to a bad word and adult subjects, I can't use this

  38. Owen Owen

    Owen OwenOy oldin

    I love rewatching these episodes and skipping to a random part 🤣🤣

  39. Ferria

    FerriaOy oldin

    Lmao always gets my giggles going!.

  40. Annika Pollak

    Annika PollakOy oldin

    When I was 2 y.o I ate a silica packet

  41. Kitty Kat

    Kitty KatOy oldin

    Very scientific

  42. çŁøÑę

    çŁøÑęOy oldin

    Those craps r hella pimp

  43. John G.

    John G.Oy oldin

    When zefrank did the "Oh Gawd!" voice of the worm being sucked up by the pipette, I lost it.

  44. Xenokle

    XenokleOy oldin

    “do you like balls?”



    yes i do

  46. kwazhims3lf

    kwazhims3lfOy oldin

    my first zefrank vid im gonna keep watching, wait to sub, lots of ball talk making me nervous

  47. Wutdahell?

    Wutdahell?Oy oldin

    Legend says: that David is still scratching the sand

  48. Michael Dowlin

    Michael DowlinOy oldin

    Sir.... There has not been a video you've made that I have Not sat through with a big dopey ass smile on my face like a proud parent. I have no words to describe my love for your writing and narrations. Thank you for every video you've ever made. from the bottom of my heart.

  49. BookGirlCNY

    BookGirlCNYOy oldin

    Ditto ditto ditto!!! Now I need to find another...

  50. Rabba Doodles45

    Rabba Doodles45Oy oldin

    2:09 Henry here with a picture of a coin to make 'cents' on how 'rich' he is

  51. Megan Hanson

    Megan HansonOy oldin

    More microscopic commentary. Thanks.

  52. CalebTheCat Gaming

    CalebTheCat GamingOy oldin

    Jack: I love balls!

  53. Anangh M K

    Anangh M KOy oldin

    2:14 that's an Indian 5rupee coin!?

  54. shaufiq fauzi

    shaufiq fauzi2 oy oldin

    There’s tons of them in my area but when you try to catch them these bastard will run so fast.

  55. ⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻

    ⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻⸻2 oy oldin

    "second-worst star wars movie" I have to stronlgy disagree.

  56. Rhaenyra Targaryen1stofhername

    Rhaenyra Targaryen1stofhername2 oy oldin

    This is my new favorite channel.

  57. danny phantom

    danny phantom2 oy oldin

    i absolutely love that the little animals get names now. henry, emma, david... it's so funny to me

  58. Mario 288

    Mario 2882 oy oldin

    1:34 Thank me later

  59. BookGirlCNY

    BookGirlCNYOy oldin


  60. Henrik Roback

    Henrik Roback2 oy oldin

    I live for the commenting

  61. BookGirlCNY

    BookGirlCNYOy oldin

    “...and dreams...of balls.” 3:21

  62. Shadow0847

    Shadow08472 oy oldin

    Is it only me or did this guy ruin beaches for you

  63. Symphony Sonic

    Symphony Sonic2 oy oldin

    Wait this one was mostly so nice-

  64. The Man On The Mountain

    The Man On The Mountain2 oy oldin

    The creatures in this world are amazing. Except the stupid clams.

  65. Daniel Christy

    Daniel Christy2 oy oldin

    And.dreams.... of balls.

  66. Duncan Andrews

    Duncan Andrews2 oy oldin

    Did he just call Revenge of the Sith the second worst Star Wars movie?!

  67. bigshortstop

    bigshortstop2 oy oldin


  68. Kharis Serna

    Kharis Serna2 oy oldin

    0:12 "David on the other hand is a *total* *idiot."*

  69. Temporary Name

    Temporary Name2 oy oldin

    These things are freaking nasty. Have an upvote for this high quality video.

  70. Bernd Bernd

    Bernd Bernd2 oy oldin

    Second worst? M8 theres 3 movies made in the last decade that are worse!

  71. Sandra Nelson

    Sandra Nelson2 oy oldin

    #1 good time crab!

  72. Adrien Manriquez

    Adrien Manriquez2 oy oldin

    “David on the other hand is a total idiot “😂😂😂

  73. DerangedNoodles

    DerangedNoodles2 oy oldin

    That ending was oddly beautiful

  74. Production 07

    Production 072 oy oldin

    "Youre gonna die david "

  75. Naynotaker

    Naynotaker2 oy oldin

    They remind me of Wall-E

  76. Wolf_ Thing

    Wolf_ Thing2 oy oldin

    Those little sand balls look like Reeses Puffs Cereal

  77. Maureen McConnell

    Maureen McConnell2 oy oldin


  78. Ed Soderlind

    Ed Soderlind2 oy oldin


  79. Krisztián Németh

    Krisztián Németh3 oy oldin

    This is the best channel ive ever found in my forteen or something years on youtube.

  80. Ernő Vincze

    Ernő Vincze3 oy oldin

    2:52 - So Attack of the Clones is the second worst Star Wars movie... this video was released after The Rise of Skywalker, right?

  81. Alex Ernst

    Alex Ernst3 oy oldin

    Well that was dissapointing. I expected the balls to be used as little fortifications.

  82. ConcernedNoise qಠoಠp

    ConcernedNoise qಠoಠp3 oy oldin

    I would literally die happy if there is one about true facts about the Norway rat

  83. O SS

    O SS3 oy oldin

    This is my favourite youtube channel

  84. Kurt Tite

    Kurt Tite3 oy oldin

    2:51 last jedi? 🤔

  85. Brad Silvers

    Brad Silvers3 oy oldin

    Told ya david.

  86. Laurel Cook

    Laurel Cook3 oy oldin

    He says “byird” for bird 😂

  87. Shmaz Pootaz

    Shmaz Pootaz3 oy oldin

    “Second worst starwars movie” 😂😂😂 im so happy Zefrank doesnt consider the sequel trilogy part of starwars

  88. COLE Shion

    COLE Shion3 oy oldin

    There is microscopic worms in the beach sand. Me who is afraid of worms and parasites: I shall not go to the beach anymore 😨

  89. Ginny Jolly

    Ginny Jolly3 oy oldin

    i'm little i'm little I'm *BIG!!*

  90. Philip J. Fry

    Philip J. Fry3 oy oldin

    Before this video there was only one other type of crabs I knew about...

  91. shiriru B

    shiriru B3 oy oldin


  92. Prophet of Greyism

    Prophet of Greyism3 oy oldin

    “I’m little, I’m little, I’m BIIIIIG.

  93. Chad Nigel G. Hans

    Chad Nigel G. Hans3 oy oldin

    I thought the crab was at least a few inches big until i saw the coin

  94. Moja Fox

    Moja Fox3 oy oldin

    I wish I'm as rich as Henry.

  95. Tim Watt

    Tim Watt3 oy oldin

    David must be the house boy that Jerry and T.F. guy make clean the house in his underwear!

  96. Astrobrant2

    Astrobrant23 oy oldin

    Wow! Just WOW!

  97. S R

    S R3 oy oldin

    Sand bubbler crabs are Anakin’s least favourite animal.

  98. Realaussieflims

    Realaussieflims3 oy oldin

    One of the few UZnickrs who can make me laugh out loud every video.

  99. Sarah Johnson

    Sarah Johnson3 oy oldin

    I like how they make little sandcastles to burry themselves in at the end of the day, so cute

  100. Ellie L

    Ellie L3 oy oldin

    I just found you yesterday, and Im hooked ! Thanks for i the info and the Laugh

  101. Namun Field

    Namun Field3 oy oldin

    His videos makes me wonder what his search history looks like...

  102. Mmina Maclang

    Mmina Maclang3 oy oldin

    I don't know how Complexly hasn't reached out yet to offer you a job to just do this for life.

  103. Victoria Olson

    Victoria Olson3 oy oldin

    Too much information

  104. NikkandJJ Boutell

    NikkandJJ Boutell3 oy oldin

    You should also do an episode called true facts about stoners and use clips from the UZnick videos called “that high” lmao