Taxonomy: Life's Filing System - Crash Course Biology #19

Поділитися
Вставка
  • Опубліковано 11 чер 2024
  • Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy.
    References:
    anthro.palomar.edu/animal/tabl...
    www.strangescience.net/linn.htm
    www.newyorker.com/reporting/20...
    linnaeus.c18.net/Doc/lbio.php
    faculty.fmcc.suny.edu/mcdarby/...
    hyperphysics.phy-astr.gsu.edu/...
    tolweb.org/Eukaryotes/3
    www.livescience.com/4593-great...
    faculty.ccbcmd.edu/courses/bio...
    Table of Contents
    1) Taxonomy 0:00
    2) Phylogenetic Tree 1:24
    3) Biolography 2:26
    4) Analogous/Homoplasic Traits 3:48
    5) Homologous Traits 4:03
    6) Taxa & Binomial Nomenclature 4:56
    7) Domains 5:48
    a) Bateria 6:04
    b) Archaea 6:44
    c) Eukarya / 4 Kingdoms 6:54
    -Plantae 7:56
    -Protista 8:23
    -Fungi 8:56
    -Animalia 9:31
    Crash Course is on Patreon! You can support us directly by signing up at / crashcourse
    Want to find Crash Course elsewhere on the internet?
    Facebook - / youtubecrashcourse
    Twitter - / thecrashcourse
    Instagram - / thecrashcourse
    CC Kids: / crashcoursekids

КОМЕНТАРІ • 2,4 тис.

  • @c.m.880
    @c.m.880 9 років тому +2502

    Dear Hank,
    Thank you for teaching my AP Bio class because you do one hell of a lot better job than my teacher

    • @trentonhughes2486
      @trentonhughes2486 9 років тому +15

      Ha same in my class

    • @FireflyOnYoutube
      @FireflyOnYoutube 9 років тому +9

      Catherine Miner Same here, I'm CP Bio though, but the teacher is completely stupid person who (like she said to us) confuses herself when teaching the subject so the class is irrationally hard.

    • @armoda1057
      @armoda1057 9 років тому +8

      Catherine Miner read the textbook

    • @lilyellis2761
      @lilyellis2761 8 років тому +19

      +Lord Raptor yes because everyone can understand everything in the textbook with no help

    • @alejandroalonso3609
      @alejandroalonso3609 8 років тому +2

      +Lord Raptor >using a textbook
      Get gud

  • @vladimirjosh6575
    @vladimirjosh6575 4 роки тому +644

    *_"God created, Linneaus organsized"_*
    Nailed it, Carl!

  • @verenizetrujillo6168
    @verenizetrujillo6168 6 років тому +114

    I would just like to take a moment to thank Hank and the rest of the CrashCourse team for helping me pass my classes this semester. I couldn't have done it without y'all.

  • @Takanayagi88
    @Takanayagi88 9 років тому +600

    "Gotta organize'em all!" - Linneaus

    • @deeyakaur
      @deeyakaur 8 років тому +29

      +Diego Leal I think "Gotta sort'em all!" sounds better...

    • @voltron-eb6sx
      @voltron-eb6sx 7 років тому +13

      Diego Leal
      I wanna be, the very best, sorter there ever was!

    • @jackassraptormongoloidensi2907
      @jackassraptormongoloidensi2907 6 років тому +2

      The science of Pokemon Classification nice Pokemon reference btw

    • @sciencecompliance235
      @sciencecompliance235 6 років тому +4

      He wanted to be the very best, like no one ever was.

    • @snehaa408
      @snehaa408 5 років тому

      @@deeyakaur impressive!

  • @moosegoose1282
    @moosegoose1282 9 років тому +3542

    Who else watching this for a test coming up?

  • @mykadassano438
    @mykadassano438 9 років тому +216

    "Cross stitched onto a pillow for you to sleep on..." is one of the cutest voices I've ever heard come out of Hank.

  • @blooms454
    @blooms454 10 років тому +267

    "Wait for it...the Sponge!"
    Do I detect some parallelism between the Sponge and the Mongols?

    • @zacjones8895
      @zacjones8895 10 років тому +12

      Omg, yassss

    • @leo-hao
      @leo-hao 5 років тому +6

      I can’t wait for the “we are the exeption” sponge poster and t shirt

    • @vascosilva9790
      @vascosilva9790 5 років тому +2

      I detect but you know who doesnot what for it the sea mongols
      Wait its the sea people

  • @samanthakerryy
    @samanthakerryy 10 років тому +320

    My teacher gave me the best way of remembering the classification hierarchy;
    Kinky (Kingdom)
    Pants (phylum)
    Come (class)
    Off (order)
    For (family)
    Good (genus)
    Sex (species) ... Enjoy

    • @elibraverman9458
      @elibraverman9458 6 років тому +8

      this is amazing

    • @janderson947
      @janderson947 6 років тому +19

      well at least i can remember.....

    • @rudders7240
      @rudders7240 6 років тому +10

      except you need domain now out the front, so maybe dirty lol

    • @cutoororoo685
      @cutoororoo685 6 років тому +2

      Sam Harris this is going down to all generations of my family... XD

    • @ajesusencounter8261
      @ajesusencounter8261 6 років тому +23

      Lol we used:
      King
      Phillip
      Came
      Over
      For
      Grape
      Soda
      😅

  • @darkkreeture8499
    @darkkreeture8499 6 років тому +40

    I like how this channel never does clickbait

  • @lori9885
    @lori9885 7 років тому +361

    All around are biology students, cramming info
    cramming infooo
    Gotta cry I have to hide my sorrow
    testing tomorrow, testing tomorrow....

  • @4everlove403
    @4everlove403 7 років тому +1077

    Biology Test tomorrow. anyone?

  • @sowgingchen2139
    @sowgingchen2139 8 років тому +35

    What a great time to be a student....

  • @1Dhpfan
    @1Dhpfan 8 років тому +294

    This is how I chose to study for my biology test :)

  • @johnpayne7748
    @johnpayne7748 8 років тому +378

    I'm willing to bet that 80% of the people watching this video have to fill out a sheet for science

    • @VioletIsBulletproof
      @VioletIsBulletproof 8 років тому

      +John Payne yup!!!!lol. Thats what i did. but as an artist, it inspired me for a series of art pieces i would love to create....it involves the kindgoms....muahaha.....

    • @samuelheavener261
      @samuelheavener261 8 років тому +10

      Well, I don't have to fill out a sheet, but I do have to take notes on it.

    • @burdy2959
      @burdy2959 7 років тому +15

      i don't i just went on a animal adventure on wiki and got confused

    • @josehernandez-pu1qv
      @josehernandez-pu1qv 7 років тому +1

      John Payne yes!! omg

    • @nataliedecher5657
      @nataliedecher5657 7 років тому +2

      Do you mean like for homework?

  • @eyebags2860
    @eyebags2860 4 роки тому +31

    Thanks hank you saved me from failing my science class and from my asian mother's slipper of fire
    👍uwu👍

  • @nathanmuir9118
    @nathanmuir9118 11 місяців тому +5

    Omg he's so young. He's even getting caught up on words so cute

  • @Agvarst0517
    @Agvarst0517 7 років тому +39

    Hahaha I find it funny that everyone here was talking about how they were a bio student cramming for exams. I am a Vet Tec student whose professor put this link in our homework assignment.
    Hope you guys did will on your exams.

  • @CB-sk1pq
    @CB-sk1pq 9 років тому +234

    "I know, let's pick this kitty!"
    *claps and gasps in delight*

    • @johannanichols5853
      @johannanichols5853 4 роки тому +3

      ʎʇʇəq ıɐɔ I have three cats of my own and I had the same reaction

    • @Zer0_Flowers
      @Zer0_Flowers 4 роки тому +1

      ʎʇʇəq ıɐɔ I was thinking the same thing

  • @seanbrown532
    @seanbrown532 8 років тому +58

    I think what you meant to say was, "Wait for it- the Mongols."

  • @ArtsyChick24
    @ArtsyChick24 8 років тому +208

    I'm willing to bet that a good chunk of the people watching this right now are IB Biology students who are getting desperate (like me)...

  • @Oogbae
    @Oogbae 8 років тому +175

    Exam in 3 and half hours... Oh dear lord..

    • @123cheezecakehd
      @123cheezecakehd 8 років тому +8

      Yeah dude im fucked lol

    • @Oogbae
      @Oogbae 8 років тому +3

      Ayy, it wasn't too bad.. Maybe.. hopefully.. Oh my :(

    • @123cheezecakehd
      @123cheezecakehd 8 років тому

      i feel it was a pretty merciful paper

    • @123cheezecakehd
      @123cheezecakehd 7 років тому

      results back on 18th

    • @Oogbae
      @Oogbae 7 років тому

      I feel sick. hahaha

  • @gultair
    @gultair 12 років тому +12

    Wait for it.
    You said that, and I immediately thought of "Unless you're the Mongols"
    CrashCourse. I love your programs.
    I really like these because they don't drop the specific information for the sake of being entertaining, and yet still can add in fun bits every once in a while. I enjoy learning this way, thank you for helping me become a better scholar.

  • @reecehayden7731
    @reecehayden7731 8 років тому +93

    Any last minute AS crammers like myself?

  • @tmcosby
    @tmcosby 7 років тому +47

    "Unless you're a sponge" is the new "except for the Mongols"

  • @MacroAggressor
    @MacroAggressor 7 років тому +35

    "Thank you for watching our taxidermy...."
    OH MY GOD!!! What did he do to the cat!?!

  • @hallowacko
    @hallowacko 5 років тому +33

    Dear Hank,
    Can we get a Crash Course Biology II?
    Best Wishes!
    John Newman

  • @mahounekoshoujo4
    @mahounekoshoujo4 8 років тому +390

    Biology final, anyone?

  • @1philpot
    @1philpot 4 роки тому +19

    Reading Bill Bryson’a a short history of nearly everything. Had to pull out my microbiology with taxonomy textbook. Thank you for your detailed presentations they are helping immensely with understanding this tip of the iceberg.

  • @arsonistica545
    @arsonistica545 Рік тому +3

    Thanks for this

  • @ha.jar_a_
    @ha.jar_a_ 6 років тому +25

    Hank: let’s pick this kitty
    ME: yeesssss

  • @juliaracine5799
    @juliaracine5799 7 років тому +4

    Thank You Hank for acknowledging the constant change in our understanding of the world. It amazes me that even just 5 years after this video went up, the taxonomic system has changed so much that my college Biology of Organisms course has to teach an entirely new classification. Science has made a victory in the description of Supergroups and the integration of the meltingpot that was kingdom Protista into groups which better fit their traits and evolution (just as you hinted might be a good idea).

  • @destinyallen4509
    @destinyallen4509 9 років тому +12

    I have the APBIO Exam tomorrow so thanks for posting all of these videos, including this one because it's so much to memorize.

  • @counterintuitivepanda4555
    @counterintuitivepanda4555 9 років тому +29

    I have a test coming up and I didn't want to revise from my book so I came here.

  • @samabizzle
    @samabizzle 10 років тому +126

    I LEARNED THINGS.

    • @CallMeNequey
      @CallMeNequey 9 років тому +2

      I know right so did i

    • @FROPDESAI
      @FROPDESAI 9 років тому

      ***** Nequey

    • @nikitageissler2897
      @nikitageissler2897 6 років тому

      Sam I was on Snapchat half the time

    • @leo-hao
      @leo-hao 5 років тому

      SO DID ME AND EVERYONE ELSE AND BY THE WAY NO NEED TO SHOUT!!!!!!!!!!!!!!

  • @koushitagouri8241
    @koushitagouri8241 5 років тому +20

    Hi, i love crash course, been using it since 3rd grade and now in 7th and still using it. This is my first year in a middle school where we do mid-terms and crash course has helped me prepare for history, physics, biology, and chemistry. So thank you so much for the videos and plz make one for the 4 macromolecules of life, and 6 characteristics of life. THANK YOU.

  • @abigailcrawford3346
    @abigailcrawford3346 5 років тому +3

    I love using your crash course videos for studying. They are interesting and full of important details for review and overviews. Keep up the good work. PS. Your brother does a great job with the history videos. You two are great.

  • @Avohaj
    @Avohaj 12 років тому +8

    one of the most mind blowing things that taxonomy taught me is that while the relation between dogs and seals doesn't seem too far fetched (especially looking at the skeletons) that they're both also relatively closely related to bears was a shocker to me

  • @gracevicious
    @gracevicious 10 років тому +7

    I watch these videos before I go to my bio class and I always end up laughing out loud in a hallway surrounded by other students. Thanks Hank.

  • @indigenousculturalconserva1577
    @indigenousculturalconserva1577 9 років тому +11

    I was on the edge of my seat, felt a bit like he was mocking my excitement for evolutionary biology. :-)

  • @megmalkemes1291
    @megmalkemes1291 10 років тому +3

    Thank you for making my science class so much easier to understand!

  • @ParanoiaQueen1812
    @ParanoiaQueen1812 10 років тому +3

    Thank you so much for making these! They have helped me so much with my bio class!

  • @tabbylucys
    @tabbylucys 12 років тому +4

    Hank! So I used to watch all crash course videos, but then I only watched the history ones - and the I saw you talking to John and saying that biology got lots less views than history so I started watching biology again and I'm so glad! There so wonderful ANSI rally Lerner a lot. Thank you so much for making such wonderful content xxx

  • @LaBam85
    @LaBam85 7 років тому +1

    you are fantastic Hank, don't ever stop teaching

  • @kevinhall2839
    @kevinhall2839 4 роки тому +28

    Hank, great video as always. One question: you seemed to make a point of mentioning more than once that protists are unicellular, yet I was under the impression that protists (being the grey area they are as you mentioned) include all eukaryotes that are considered neither Animalia, Plantae, nor Fungi. I was also under the impression that some of these Protista are indeed multicellular.
    Kevin

  • @johnsonshad4093
    @johnsonshad4093 6 років тому +20

    your videos are worth watching... Thanks for sharing your knowledge with all the biology lovers and learners.
    Made 3 page notes of it :) :)

  • @darkyboode3239
    @darkyboode3239 10 місяців тому +3

    I’m someone who is quite fascinated in taxonomy. I didn’t study biology in school, but naming and classifying organisms is fun.

  • @fadi5631
    @fadi5631 4 роки тому

    this man takes biology ,chemistry and psychology together ! hats off to ya !

  • @imperfects6766
    @imperfects6766 4 роки тому +1

    I learned a lot more than my teacher from this video. This channel is such a life saver!

  • @burnttoastdani2364
    @burnttoastdani2364 6 років тому +4

    i am home schooled and me and my mom love your classes without you i would not know how my body works :p

    • @hdr3393
      @hdr3393 5 років тому +1

      Hey Glitch Master get prepared for the topics by giving the answers of the questions by Edu tain p. Search for Edu tain p. I think it will be beneficial for you. Best of luck for your bright future 👍 👍

  • @pikacrafter2903
    @pikacrafter2903 7 років тому +12

    I feel like such a nerd since I'm not watching this for an actual class (even though I'm taking Biology this year, I am a Freshman and not in anything advanced unless you count Honors), and I'm watching it for fun.

  • @GleeVampDiaries212
    @GleeVampDiaries212 10 років тому +1

    Watching this at 1:30 AM on the morning of my biology midterm.
    Thanks Hank!

  • @mayapuppyy
    @mayapuppyy 7 років тому +2

    That was a great video!! I wish you were my teacher or my daughters teacher. You make it fun and keep us interested throughout. Thank you Hank

  • @ariannabroad3634
    @ariannabroad3634 10 років тому +10

    When he said taxidermy instead of taxonomy.... dying laughing :D

  • @christinaabanto5680
    @christinaabanto5680 8 років тому +17

    when finals are in four days and your teacher doesnt teach so you get desperate

  • @123imchina
    @123imchina 11 років тому +2

    I love this so much, this part of the course never sunk in and I never understood it properly.... THANK YOU!

  • @tatianakneale5542
    @tatianakneale5542 5 років тому +2

    Can i just say thank you so much. I started this freshman year with a D on my first bio test and last year I had had straight As so i freaked out, but since then I've worked my way up to an A again, and I think I owe a lot of it to your videos. You make my least favourite subject far more interesting than i find it at school and I'm extremely grateful for that :)))))))))) THANK YOUUUU!!!!!!

  • @jennifer_the_linguist
    @jennifer_the_linguist 5 років тому +10

    From my 7th grade life science teacher...
    Kids (Kingdom)
    Playing (Phylum)
    Cards (Class)
    On (Order)
    Freeways (Family)
    Get (Genus)
    Smashed (Species)

  • @wanderinglana8292
    @wanderinglana8292 7 років тому +3

    Randomly came here because I'm studying to clep biology and OH MY GOSH It's Hank Green! Instantly 1,000x more interested in this because it's Hank.

  • @BlckCloud73
    @BlckCloud73 6 років тому

    Taught in 12 minutes what my kid's teacher couldn't teacher in a week. This channel should get the state funds.

  • @cactusbabe6947
    @cactusbabe6947 8 років тому

    I enjoy your videos so much. I watch them just to learn and since they actually make me laugh they are an instant go to. Thank you!

  • @gdtrekkie2380
    @gdtrekkie2380 8 років тому +22

    Cat: I don't wanna be on UA-cam!!!

  • @annaandersson6017
    @annaandersson6017 10 років тому +14

    Did you know that Carl Linnæus is on the swedish 100 kr bill? (Or, for now, at least. The apperance of our bills will change pretty soon. Linnæus will be replaced by the actress Greta Garbo.)
    Also, it's feels so strange to hear the name 'Carl Linnæus'. I've always refered to him as Carl von Linné (which is the name he got after his enoblement. It's also much more commonly used in Sweden.)

  • @YoussefYoussef-hf9gs
    @YoussefYoussef-hf9gs 8 років тому +2

    Views for these videos must skyrocket around this time every year.

  • @shiminshamim8359
    @shiminshamim8359 9 років тому

    Hank, you are so much more better than my science teacher. Thanks for helping me with my revision for my GCSE exam... :)

  • @FirstRisingSouI
    @FirstRisingSouI 8 років тому +5

    If we find life on other planets that started independently, will we need another classification beyond domain? What would it be?

  • @MeetDK
    @MeetDK 6 років тому +3

    You actually teach a lot better than my science teacher

  • @cameornlisajane
    @cameornlisajane 8 років тому +1

    A really great video - learning A level biology at home - on the computer, so this is really helpful. thank you.

  • @lisaswaboda3127
    @lisaswaboda3127 7 років тому

    Thank you for your humor. My middle schooler is LOVING these!

    • @lisaswaboda3127
      @lisaswaboda3127 7 років тому

      Oh yeah, the actual content is really cool too! ;-)

  • @chantellerosebud1780
    @chantellerosebud1780 7 років тому +6

    "Thanks for watching this taxidermy... Wait no..." LMAO!!! No wonder kitty didn't wanna hang around 😆
    Great video though, and helped me, thanks 😊

  • @brandonkim8423
    @brandonkim8423 10 років тому +504

    Dear all the people trying to correct Hank Green;
    If you're so smart, why the hell are you here?
    Sincerely,
    the rest of us.

    • @anniekim2445
      @anniekim2445 10 років тому +11

      Nice one

    • @blooms454
      @blooms454 10 років тому +7

      Amen

    • @brandonkim8423
      @brandonkim8423 10 років тому +9

      blooms454 why thank you

    • @mariamalik728
      @mariamalik728 10 років тому +11

      Finally, someone understands my annoyance with all these people correcting him!

    • @Daruqe
      @Daruqe 10 років тому +31

      You saying people shouldn't try to correct him? What?

  • @marchenkogirl
    @marchenkogirl 8 років тому

    YOU ARE GREAT! YOU HAVE BEEN HELPING ME THROUGH ALL OF MY BIO AND CHEM CLASSES :)

  • @robbiedavies2171
    @robbiedavies2171 11 років тому +2

    I was taught this as part of one of my modules at my uni and fair to say I hated it. However thanks to you, I was able to actually learn from and really enjoy these lectures, cheers Hank, you are awesome!

  • @hjwiser
    @hjwiser 6 років тому +4

    These videos are great - I'm using them to help teach my elementary school daughters. Thanks much!

  • @darkdagon4264
    @darkdagon4264 10 років тому +61

    are you telling me, that you don't think fungi are adorable????

    • @jennali9800
      @jennali9800 6 років тому +5

      No, but I'm in love with slime mold! Look, it's moving! It wants to give you a hug!

    • @ajesusencounter8261
      @ajesusencounter8261 6 років тому

      Me

    • @user-pv9my4gl9w
      @user-pv9my4gl9w 4 роки тому

      @@jennali9800 Plasmodium is my spirit animal!

  • @9_in_the_afternoon
    @9_in_the_afternoon 7 років тому

    Accidentally watched this at 2x speed. It was amazing. Hank's practically vibrating.

  • @proximacentauri2684
    @proximacentauri2684 5 років тому +2

    I don't know why, of all subjects in biology, this is somehow the one that leaves me desperately grasping for memories in exams.

  • @jessicakarnes8980
    @jessicakarnes8980 9 років тому +19

    There is everything from Literature to Psychology, but I think a math segment of some kind would be pretty helpful to a lot of people.

  • @bellaandnemo
    @bellaandnemo 7 років тому +3

    Later Carl changed his last name and became somewhat "Royal" so his final name was Carl Von Linné which is his now commonly used name :) I'm from sweden and I love your videos :)!

  • @bidishamukherjee3936
    @bidishamukherjee3936 6 років тому

    my favorite chapter in bio is taxonomy and hank did a great job here.....
    MY BEST AND FAVORITE MOST VIDEO TILL DATE

  • @M4G1CSKILLZ
    @M4G1CSKILLZ 9 років тому +1

    Great Video :) I learnt lots for my science test tomorrow and this video helped me a lot so thanks dude

  • @Shimas47
    @Shimas47 8 років тому +7

    Thanks for making these interesting videos!
    I have a question: what about viruses, do they also go into the same system? Or are they outside it?

  • @hasini
    @hasini 10 років тому +25

    aww the kitty :3

    • @vulixirus
      @vulixirus 5 років тому +1

      her name is cameo

  • @MO-ts9de
    @MO-ts9de 8 років тому

    these videos makes studying fun , thanks it helped alot

  • @uzairfly
    @uzairfly 5 років тому

    I was sruggling for my test and didn't have any idea about taxonomy.
    Thank God I found you. 😍
    Subscribed and liked !!

  • @user-yq2ep3du5w
    @user-yq2ep3du5w 4 роки тому +3

    Lol, he started to sniff right after I farted. Consecutively, to be precise. lol

  • @byroncr6618
    @byroncr6618 Рік тому +3

    2 New kingdoms in 10 years

  • @zillmiracle3214
    @zillmiracle3214 4 роки тому

    This video is such a mood... I love it

  • @rmalpass
    @rmalpass 6 років тому

    Hank,
    Great work PLEASE keep it up!!

  • @aldente5311
    @aldente5311 8 років тому +4

    U R My new favorite morning coffee smart guy information vehicle. Thank you.

  • @nabils9837
    @nabils9837 10 років тому +3

    can't help but think of Dwight from The Office every-time I watch this guy lol

  • @djpuff1997
    @djpuff1997 7 років тому

    I think you just saved my Zoology final exam grade...... You are an amazing person. Thank you from my future career.

  • @millaalmeida1388
    @millaalmeida1388 5 років тому

    I'm watching this for a test but it's so good I'd simply watch for knowing the subject. Luv these videos, specially phylosophy

  • @solar9110
    @solar9110 4 роки тому +3

    Quarantine anyone?

  • @EmoNinjaGirl15
    @EmoNinjaGirl15 10 років тому +23

    You're holding the cat wrong Hank XD

  • @Angie-lr2dy
    @Angie-lr2dy 9 років тому

    these videos have helped me learn more about binomial nomenclature

  • @thetubewatcher36
    @thetubewatcher36 5 років тому

    Excellent job young man. Very lively presentation for those who get easily bored, like me.

  • @Callme_Fe4rrless069
    @Callme_Fe4rrless069 9 місяців тому +4

    Domain eukaryotes
    Kingdom animalia
    Phylum chordata
    Class mammalia
    Order carnivora
    Family felidae
    Genes felis
    Species catus

  • @gailguiang3978
    @gailguiang3978 9 років тому +3

    On the 1st 15 seconds, you sounded a bit like pre-mature Cody (from the Suite Life...)

    • @tianavibhakar3765
      @tianavibhakar3765 8 років тому

      Gail Guiang yes omg! i had to go back and listen again after i read this comment but ah-greed!

  • @micaelaforlano4374
    @micaelaforlano4374 6 років тому

    You are an absolute life saver! I learned more from this than my college lecture, and thank goodness I did because I have a 2,000 word essay that I have to write, and your videos are the reason I actually understand them. (If you were to maybe slow down just a hair, I would appreciate But..... you you do your thing, since you do it better than anyone else.) Again, thank you!

  • @ollaughingbeta2233
    @ollaughingbeta2233 7 років тому

    i love your vids and believe all of them you help me in class the most just remember that you are a hero