Casually Explained: Evolution

Although first published in the Origin of Species by Charles Darwin in 1859, the theory has gone through many small changes to become what it is today.

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Ok, real talk for a second. I owned Ducks when I was a kid and they’re super dumb. But the worst thing is it’s like they’re proud of it too. Like our ducks use to lay eggs and literally forget where they laid them and when you tried to say “hey chad, your nest is over there you dumb duck” they don’t give a shit and peck at your shoelaces because they’ve forgotten why they’re there and just want bread crumbs.




  • Teirzoo

    Ethicalz ZEthicalz Z12 dögum síðan
  • When you pause perfectly at 1:58 and see the pictures: :)

    TheRedPandaGamer 16TheRedPandaGamer 1613 dögum síðan
  • Magnetopus

    W YW Y14 dögum síðan
  • I didn't know casually explained was tierzoo back in 2016

    MufasaMufasa15 dögum síðan
  • This is just a tier zoo video

    jjefjjef15 dögum síðan
  • I was focusing on something else as the video ended and then I just here this man make some random ass duck noises. Ok, sir.

    Onnie StoneOnnie Stone15 dögum síðan
  • When casually explained tries to be TierZoo

    David WengDavid Weng21 degi síðan síðan
    • No

      Ej SowdenEj Sowden20 dögum síðan
  • If anyone is wondering, theres a flash at 1:57. Its 2 pictures of a type of evolution game with cartoony graphics. I dont know what game it is but to add to that it reads "8 years later, still dissapointed"

    MorpheusMorpheus22 dögum síðan
  • Wow, this video is turning 4 years old tomorrow!

    Franck ExtraFranck Extra24 dögum síðan
  • ...tier zoo?

    FearTheImpalerFearTheImpaler26 dögum síðan
  • Most animals can sense elecromagmetic waves. They are just light. You mean platypusses have electroreceptors

    der Leander Lean27 dögum síðan
  • It’s like TierZoo except for casuals.

    Jordan BJordan B29 dögum síðan
  • 8 years later still disappointed

    Benson RaelBenson RaelMánuði síðan
  • 1:57

    Brat MomentBrat MomentMánuði síðan

    Ravenclaw GamingRavenclaw GamingMánuði síðan
  • Teirzoo vibz

    cedar phillipscedar phillipsMánuði síðan
  • 1:57

    MoojudgeMoojudgeMánuði síðan
  • “Platypus […] can sense electromagnetic waves”. Well, I do, we all humans also do (at least some frequencies of waves). Those electromagnetic waves are called light and different wavelengths/frequencies are called colours. Not so accurately explained what's different with the platypus, though…

    Daniel Santiago Avella ChaparroDaniel Santiago Avella ChaparroMánuði síðan
    • @Ugly Toaster It depends of that black patch. :v But seriously, what I mean is that it isn't specified how platypus' perception of electromagnetic waves differs from other mammals'. Is it UV perception? Is it infrared? Is it polarised light? Is it a lot more sensitivity in visible spectrum do that they could say if the light is on or off with eye patches (if they could speak)? I actually don't know, but the video doesn't tell us.

      Daniel Santiago Avella ChaparroDaniel Santiago Avella Chaparro27 dögum síðan
    • So with black patch covering your eyes you can sense if light is on or off in room... Cool

      Ugly ToasterUgly ToasterMánuði síðan
  • But if platypuses don't have nipples, they can't count as mammals because a mammal is literally a BREASTED beast

    kit_ninekit_nineMánuði síðan
  • So we’re just gonna ignore that Nazi fish

    Raphael ChenRaphael ChenMánuði síðan
  • “Sharks don’t need to hide from predators” orcas: um excuse me

    Getnoob And sub to pewdpieGetnoob And sub to pewdpieMánuði síðan
  • The transition into rpg skill trees was so flawless

    Noah RousselNoah RousselMánuði síðan
  • TierZoo would like to know your location

    1n91n9Mánuði síðan
  • Spore

    1n91n9Mánuði síðan
  • I tought this was inspired by tierzoo But actually this is its precursor

    Brazilian DudeBrazilian DudeMánuði síðan
  • Tierzoo + More Comedy = Casually Explained

    Age Of The AntsAge Of The AntsMánuði síðan
  • Normal Fish: o-o Next-Gen Fish: o-0

    Quakein BootsQuakein Boots2 mánuðum síðan
  • Trying to be tier zoo?

    Icosahedron NebulaIcosahedron Nebula2 mánuðum síðan
  • Did I just watch TierZoo?

    David YacoubDavid Yacoub2 mánuðum síðan
  • 8 years later..... still disappointed

    bean manbean man2 mánuðum síðan
  • B .. B ..... BBBBBBBB ... it doesn't work !!

    SwingFishSwingFish2 mánuðum síðan
  • *This is literally Tierzoo*

    MollysMoshing TankCrewMollysMoshing TankCrew2 mánuðum síðan
  • 1:58

    Saul MosesSaul Moses2 mánuðum síðan
  • How does it feel to be the father of a very successful youtube channel ??

    Locane256Locane2562 mánuðum síðan
  • This is like tier zoo but casually explained

    Random ProductionsRandom Productions2 mánuðum síðan
  • I subscribe thinking this was going to be an educational channel... I wasn’t disappointed...

    H T AwesomeH T Awesome2 mánuðum síðan
  • Is anyone else getting a tier zoo vibes

    Seal KINGSeal KING2 mánuðum síðan
  • the duck disadvantages and advantages part of this video killed me LOLOL and idk why hahahahahah

    Alec FloresAlec Flores2 mánuðum síðan
  • Most valid duck explanation ive ever heard

    whostolemyTVwhostolemyTV2 mánuðum síðan
  • I love you

    BT ABT A2 mánuðum síðan
  • sense electromagnetic waves, that just seeing

    Solaris SassoSolaris Sasso2 mánuðum síðan

    FlamesFlames2 mánuðum síðan
  • Assuming this isn't all a simulation...

    Ice GIce G2 mánuðum síðan
  • Absolutely no one: Casually explained: so here's my duck impression

    Robert EischenRobert Eischen2 mánuðum síðan
  • What came first this video or tier zoo

  • 0:46 umm.... why is this fish a nazi?

    marshmello unicornmarshmello unicorn2 mánuðum síðan
  • dude wtf tierzoo saw this video then turned it into a channel

    Reggie ScerboReggie Scerbo3 mánuðum síðan
  • Pokémon: Evolves in 2 seconds

    JechewJechew3 mánuðum síðan
  • 0:48 😂

    Parth ShahParth Shah3 mánuðum síðan
  • LOL you can see two pictures about spore at 1:57

    Alexander Anzovino FoltmarAlexander Anzovino Foltmar3 mánuðum síðan
  • h

    Miguel Jesus TerceiroMiguel Jesus Terceiro3 mánuðum síðan
  • I just realised that the "checkmate" at the end is from the original "checkmate atheists"-video

    Gar NichtGar Nicht3 mánuðum síðan
  • very disturbing at 1:58:62

    Giovanny Buitron JrGiovanny Buitron Jr3 mánuðum síðan
  • ducks😹😹😹😹😹

    Giovanny Buitron JrGiovanny Buitron Jr3 mánuðum síðan
  • Take that , Jesus !

    Śăhàs ľśaľŚăhàs ľśaľ3 mánuðum síðan
  • took me 8 hours to catch that single frame

    Śăhàs ľśaľŚăhàs ľśaľ3 mánuðum síðan
  • 1:57 One frame of a game I still play

    Temmie VillageTemmie Village3 mánuðum síðan
  • Honestly humans are NOT that invested in the Intelligence tree.

    Kristy MounseyKristy Mounsey3 mánuðum síðan
  • original tier zoo

    Salmon FishSalmon Fish3 mánuðum síðan
  • 1:57

    HugimiHugimi3 mánuðum síðan