My Godness! Sir Hank Green aren't you having information overload? I mean, you teach chemistry, ecology, psychology, ecology & biology, based on your videos. I know that these are literally related to one another but you're just SO amazing! Such a God-given intelligence shouldn't be squandered. You and your team made an excellent choice for setting up your youtube channel. It has helped me a lot, thank you!

Can I just say it is really freaking cool that Hank is doing a series on the things I am currently planning on spending the rest of my life doing?

Who else is watching this because they got a test tomorrow

If you didn't come here to learn about the history of life on Earth, and instead came to yell at people for believing evolution, or creationism, then please leave. you are distracting others who want to learn.

@chrisphan4566

7 жыл бұрын

Amit Adhikari amen to that!

@amitadhikari7796

7 жыл бұрын

And by and by Kinda funny how you said "Amen" but we talked about not talking about creationism. I want to think that was intentional. Funny either way!

@Raitwall

7 жыл бұрын

Amen means so be it

@amitadhikari7796

7 жыл бұрын

I know, it is used after every prayer in Catholicism.

@NeXuzMotionzz

7 жыл бұрын

Amit Adhikari it is also used in Islam after each one of the 5 daily prayers.

"Oh my gosh he looks so young! When was this filmed? ...OH WOW." 2012 is officially forever ago

would be so cool if they made an entire series focused in detail on the individual eras of earth's history from formation to today. I am really fascinated by how much and how often the geology and climate has changed since the planet's formation. There happened so much stuff in those millions of years, most documentaries or short episodes don't manage to cover up even a fraction of it.

@sapri2550

6 жыл бұрын

b

@ayo_tink

5 жыл бұрын

Is your profile picture from Malice Mizer?

Can I juts say, as someone studying Environmental Management with lots of Ecology courses, I freaking jumped when I saw this. THANK YOU CRASH COURSE!!!!! Now people can understand how important and awesome this branch of bio is

THANK YOU SO MUCH! I'm in a competition and this year, the science section covers ecology. I'M SO GRATEFUL. THANK YOU.

@Jessica-zc8jl

8 жыл бұрын

+Navya Chintaman did you win if you did you probably kicked but and stomped them in the dust/ (metaphor)

@tammyle8211

8 жыл бұрын

+Navya Chintaman Academic Decathlon??

@Jessica-zc8jl

8 жыл бұрын

I meant that if you won you kick butt. Get it?

@navyachintaman1614

8 жыл бұрын

+Hang Le Yes! I'm so excited!

@Jessica-zc8jl

8 жыл бұрын

are you in a competition now or you already did it? Sorry so confused I was in reading Olympics last year me and my team got 2nd place we read twenty books total.

So many cool ecological stories to tell! I can't wait, and hope to see some of these: 1. Metapopulations + Island Biogeography (+ dwarf elephants) 2. Fig wasps, Ant Acacias, and other fun mutualistic relationships 3. The likelihood of extinction for any given species + the Red Queen Hypothesis 4. Evolution of sex - clones vs. breeders Please and thank you!

Really loving the hair. Wild to see how much production has leveled up over the years. Thank you for doing this and for keeping it going 🙏🏼

As a college student, I have a feeling that I will need you in my life. You seem to be an answer to prayer. Thank you!

I'm about a month into my second year of ecology BSc and it's brilliant. I thought I'd watch this playlist again just for a bit of indulgence ;)

Personally, I would love a crash course website with quizzes on what you've learned by watching the videos!

Awesome everything you do at Crash Course. You've probably heard this already, but a Physics series would be excellent. I've seen world history, chemistry, and i'm starting bio... and it's just excellent. You're doing a true service to the world by creating these. Please keep it up.

This is how I'm passing my highschool biology class.

What a coincidence, not very from where you were standing is where I bury my bodies. Beautiful nature

@wonjaejang8975

10 жыл бұрын

O_O

@datherax

10 жыл бұрын

Wonjae Jang Don't worry its only small animals

@wonjaejang8975

10 жыл бұрын

o.o

@tuuZhao

10 жыл бұрын

***** cats! Amirite?!

@natashadavis8409

7 жыл бұрын

Nice!

when it takes you an hour to watch a 13 minute video because you have to take notes for your school test but you don't know how to take notes shorter than a paragraph so you end up taking two minutes for each note and you have used 4 pieces of paper only 7 minutes into the video AND your handwriting is super small

I was questioning what direction to take with my education. This is exactly the direction I am heading. haha Thanks

This makes ecology so easy. Thank you so much for these videos.(:

love the tee shirt, " Fibonacci, as easy as 1,1,2,3"

@carposporophyte

6 жыл бұрын

omg I need it

Watching Hank at half speed might be the funniest thing I've ever done. Sounds so tripped out like "whoa man, ecology is crazy dude"

@agaming-de7bc

4 жыл бұрын

You ain't lyin 😂😂

I absolutely love CC. Thank you very much for each video, you´re amazing.

Nobody knows why it happened. Nobody knows how it happened. But when it happened... everyone knew. This summer... we're! All! Going! To! Die! The Permian-Triassic Extinction Event. Rated PG-13.

@Orinslayer

10 жыл бұрын

lol yes

@xoom1712

10 жыл бұрын

Directed by Michael Bay.

@andreistephen4965

9 жыл бұрын

Jason Brody with steven speilburg

@jdfj1041

9 жыл бұрын

Jason Brody *Explosions in the background*

@andreistephen4965

9 жыл бұрын

GamingWithBen that made me laugh so much (0o0)b

I loved this episode and it gave me an idea. You guys should consider doing a Crash Course Paleontology. It could work like a cross between History and Ecology and cover the history of life on earth through the eras.

What an appropriate, nerdy, and fun T-shirt he's wearing.

@CB-sk1pq

9 жыл бұрын

James Miller It's as easy as 1, 1, 2, and 3!

@kshitijdimri6781

7 жыл бұрын

James Miller

@caribaez5711

6 жыл бұрын

James Miller yea. He is cute lol

@gibboustime

5 жыл бұрын

Fibonacci it's as easy as 1, 1, 2, 3!

@lillianhauser-howells7809

5 жыл бұрын

@@caribaez5711 his hair looks cute in this video 😂

Thank you so much for this series!!! i had to learn ecology over the summer and now its midterms and were being tested on it. this was so amazingly helpful!!!!! also i love your shirt ;)

Thank you for standing up for your beliefs WITHOUT bashing others. I know too many people seem incapable of doing that.

HUGE fan of Crash Course! I'm glad you guys have made all these videos possible!

This is the first time that I actually like an add that's on youtube!

This is so fascinating to learn about! I love Ecology :)

I showed this channel to my science teacher, and she showed this to my class today, but I couldn't understand half of it because my class wouldn't shut up. A kid at my table kept talking about how you looked like Justin Bieber(?) and how it was "boring as hell", but I find this rather interesting. I don't think they even give this kind of knowledge a chance. This channel is horribly underrated, and it deserves way more views than it gets. You guys are very entertaining, keep up the great work.

Very excited to be on earth at the same time as crash course and the green brothers

First, this was an awesome video and I thoroughly enjoyed it. Second, the time of the video is 1337. Well done.

That right there is some good ecology

This course helped me with writing a college essay, thanks for making it!

"which is certainly helping keep the planet toasty now!" lawls love the videos

hey me and my mom just listened to the whole 12 episodes, she loved them please make more :) love learning

Your videos are amazingly awesome - thanks a whole bunch crash course, you're the BEST! One favour to ask though - I am from England, and sometimes find Hank's dialect a little fast paced and tricky to catch (although very entertaining!) - I wondered if you guys would maybe consider putting the transcript up so that we could go over the written information during the video? Thanks again!

@sydneymciver9699

9 жыл бұрын

You can put subtitles on so you can read along with him :)

The best presentations of a summary of the history of life on earth include visuals to hang one's memories on.

This is amazing, this could pay off really well if it were shared in schools. Good length episodes, they could be the topic for lessons in the class room.

I just love crash course

I absolutely love you shitty puns xD

Late bloomer here, but thanks to you , I can catch up and carry on. You do a great job! Thanks!

These modest videos are really very high quality, on the level with documentaries narrated by David Attenborough, but with information crammed into a short video. You better not be distracted or you will miss something.

Kinda surprised that you didn't go into more detail about Snowball Earth. You mentioned the spike in oxygen to 31% and I thought it was coming, but it didn't

@jacobocorujo6693

5 жыл бұрын

The 31% spike was the carboniferous, caused by trees. The 10% spike was the snowball earth causing one and it happened because of cyanobacteria

I missed the graphics and animations...

@2und2sind4

6 жыл бұрын

yeah it became really boring really quickly

These crash courses contain a lot of information that could benefit the classroom.

If ecology means standing in a stream barefoot, I don't want any.

wow these videos are damn interesting. Thanks for the subtitles as well bc I'm not a native. Thanks a lot!!! It also helps me improve my English

I also enjoy the t-shirt. It seems odd that you chose to wear it during an ecology video though. Thank you to everyone who makes crash course possible. I wish I could do more to support the channel. I don't use the videos for school, but I do use them to learn new things in a surprisingly entertaining way.

THANK YOU FOR DOING ECOLOGY!!!! my exam for environmental studies is soon and these will REALLY help!!! a lot!! i want to do ecology in university too :3

Your so knowledgeable at such a young age and I love your enthusiasm. Keep teaching brother 👍

Good vid. Minor point. Oil isn't made of forests, but mostly of algae. Coal is made of terrestrial plants.

It's interesting to know what scientists ACTUALLY think happened! The whole subject is skimmed over in school because it's a controversial topic.

I deeply appreciate this channel.

Good point. That's why it is so important to be humble. People who say that they alone hold the ultimate truths of the universe are indeed arrogant [whether "scientists" OR "fundamentalists"]. We all believe what we believe because it is seems like the best explanation to us based on our life experiences. The key is to approach people with an open mind and try and gain new insights together, no?

Hank, I'm really looking forward to this new series. One comment: another change that happened when prokaryotes turned into eukaryotes is that the membrane of an ancient prokaryotic cell folded inwards, surrounding the genetic material and forming the first nuclear membrane. The presence of a nuclear membrane is a fundamental difference between prokaryotes and eukaryotes. Thumbs up so he can see?

It's just me who thinks, or this guy talks really fast?? rss Good Class!! congrats.

crash course is my go to video for learning about anything science related

already better than my science teacher. Thank you for this

a horticulture series would be awesome

I sleep with a live plant on my night stand, it breathes in my CO2 output and I breathe in it's O output. Is this healthy for me and the plant? Should I move it?

@Squidbeats-s5v

4 жыл бұрын

is it still alive???? Cuz that would be crazy.

@chironOwlglass

4 жыл бұрын

@@Squidbeats-s5v someone's never heard of the indestructible pothos. I have the least green thumb of all time, and even I can't kill a pothos.

@shaya879

4 жыл бұрын

Well at night i'm pretty sure it's supposed to do the opposite, as in take in oxygen, which would be bad for you cause you need that oxygen.

Тhank you crashcourse crew for giving my life a meaning!

As an ecology major, this video warms my heart.

If you put the playback speed on 2x, it sounds like he's trying to rap 😂😂😄

@agaming-de7bc

4 жыл бұрын

Also he kinda looks like Grant Gustin tbh

Thank you for pronouncing niche correctly. If it was pronounced "nitch" it wouldn't have the "e" on the end.

@naganokumas

10 жыл бұрын

Yes. And just after 11:00 he said 'herbivorous' and ''erbivores'. Why do many Americans drop the aitch on certain words that have an aitch at the start. They're not alone at doing that. But he provided both in one sentence. Americans don't say 'OTEL', they say 'HOTEL'. Why is 'HERB' so different? P.S. It's pronounced 'aitch', not 'haitch'.

@naganokumas

10 жыл бұрын

naganokumas Ow about aving some herb bread (aka garlic bread) ordered to my otel room? v How about having some erbread ordered to my hotel room? Brain strain.

@szhou009

10 жыл бұрын

its actually pronounced either way. I personally say both.

@Lastars12

10 жыл бұрын

Well considering how our language evolved from many different languages like French and Italian, words aren't always pronounced the way they look. If that were case we wouldn't learn spelling in school. As to your comment "if it were pronounced 'nitch' it wouldn't have an 'e' on the end," how many times face you seen an e on the end of a word and wondered why it was there? Probably a few times.

@Haaklong

9 жыл бұрын

Steven Zhou But that's what happens when you have no pphonetic basis for your language (English).

Also, this is exactly what I was looking for. Great Job!

Crash Course is great. Thank you.

My science teacher told me to go to this video.

why didnt u mention cretaceous before talking bout the KP extinction?? T___T

@wobbenbuffet3286

10 жыл бұрын

Because that's the order theta that happened

@wobbenbuffet3286

10 жыл бұрын

Manolito Gonzalez oh, nevermind

Thank you for your concern. It is meaningful to me. I too feel the same sentiment towards you. May we both have peace when we get to the other side.

Love these videos. The are so helpful. Making biology a breeze for me.

You should do organic chemistry as well .oh and physics

Something tells me that a giant meteor crashing into the earth's crust would probably trigger a fair amount of volcanic activity.

@jacobocorujo6693

5 жыл бұрын

I read up on this and that is one of the major ways the dinosaurs died, not only because of the asteroid but also because of the volcanoes the asteroid caused

Hank seems to be on a early life on earth kick with this + eons + big history.

The History of Life on Earth - Crash Course Ecology #1 NOTES 1: Course Intro 1.1: Biology knowledge is assumed 1.2: Everything connects back to ecology 1.3: The history of life here eventually leads to humans, the most important species on Earth 2: Before Life on Earth 2.1: Humans are currently the dominant species on the planet, with different dominant species over time 2.2: Most of Earth’s history from its creation 4.6 billion years ago was devoid of life due to excessive heat, much of which remains in Earth’s core 2.2.1: Earth’s core continues to influence geology, albeit slowly 2.3: Water eventually cooled enough to turn into liquid 3: Start of Life on Earth 3.1: A “soup of chemicals” such as nitrogen, methane, and hydrogen formed in the oceans and atmosphere 3.1.1: Life started as these chemicals formed organic molecules, most likely just a collection of chemicals surrounding a membrane, called Protobionts 3.2: These chemicals turned into amino acids and, eventually, RNA 3.3: Protobionts continued to split until DNA nucleotides formed, leading to single-celled organisms 4: Single-Celled Organisms 4.1: The first single-celled organisms were prokaryotes during the Archaean Eon, from around 3.5-2.1 billion years ago 4.2: A type of prokaryote called cyanobacteria began to make its own food through photosynthesis, releasing oxygen into the atmosphere and opening the way for oxygen-breathing organisms 4.3: Eukaryotes evolved by endosymbiosis, where a symbiotic relationship between two prokaryotes led to the development of organelles such as mitochondria and plastids, allowing for much more complexity 5: Multicellular Organisms 5.1: The first multicellular organisms formed around 1.5 billion years ago, first as algae 5.2: The Cambrian Explosion 535 million years ago led to an evolutionary arms race as species known as Chordates developed skeletons, shells, claws, etc., resulting in the dawn of the Phanerozoic era 5.3: Around 500 million years ago, species left the oceans and colonized land in the Ordovician Period 6: The First Land-Based Species 6.1: 365 million years ago, tetrapods (essentially fish with legs at the time) and arthropods (spiders and insects) appeared in the Devonian period 6.2: Land-Based organisms changed ecosystems as they expelled carbon dioxide after inhaling oxygen, leading to the Carboniferous period around 359-299 million years ago where dense forests sprouted up 6.3: There was too much oxygen, leading to global cooling and the destruction and eventual fossilization of these forests, which are used in today’s fossil fuels 7: Pangea and the Dinosaurs 7.1: Around 299-251 million years ago, Pangea formed as one large continent during the Permian period, altering ocean currents and the climate 7.2: Modern ferns and pines, as well as archosaurs, showed up as a result of these geological changes 7.3: The Permian-Triassic Extinction Event resulted in the vast majority of species going extinct 7.3.1: Dinosaurs evolved during the Triassic as there was little competition for their niche from other species 7.4: During the Jurassic and Cretaceous periods from 199-65 million years ago, more complex dinosaurs evolved as herbivores, carnivores, and massive sea-going species, as well as small mammals, roamed the Earth 7.5: Around 65 million years ago, a major extinction event occurred where most dinosaurs, with the exception of birds, went extinct 7.5.1: The event was likely caused by an asteroid, but may have been caused by climate change 7.5.2: Another theory is that dinosaurs often refused to eat angiosperms, a type of plant that evolved around 100 million years ago, which became more common 8: Modern Life 8.1: Mammals and birds dominated the world after the extinction event 8.2: Despite continued climate fluctuations and extinction events, species continued to evolve into what we know today, including humans 8.3: Ecology provides us with the best guesses of what will happen

nice Fibonacci Sequence T-shirt

I want that shirt.

I'm majoring in ecology in college and I can't wait to learn about this stuff

@Lucy-ng7cw

4 жыл бұрын

Autumn Holley how’d it go?

I came by clicking an advertisment video, and now I have to view another adv. video...nice job youtube!

What the hell is that weird boing sound happening throughout this video?!

Seriously, though. It must've been super smelly back then since there was so much hydrogen sulfide in the atmosphere.

@diyapudota

4 жыл бұрын

TODAY IS UR CHANNELS BIRTHAY

OHMYGODYES Have been struggling to get to grips with my new ecology course and had not realised crash course had covered this! New revision strategy.

The Green brothers always make learning fun : )

brandonp4 You are somewhat correct. The primordial soup theory isn't a law, but scientists have been really close. Look up the Miller-Urey experiment. The problem is, humans weren't alive during that time, so there are a lot of missing pieces. If all the factors were there recreating life would be a simple task, but its not. Then again, I have yet to meet a scientist who would arrogantly claim they had all the information available. That is against the spirit of science. The point is you know you don't have the whole picture, and know you never will, but still try to find the complete set. As for the human question, the first anatomically modern human is probably younger than 200k years old. Where do you get millions of years? As for technology you are right. There is no definitive reason why technology progressed more in the past 100 years than in the past 10k. It's actually a branch of history to discover why.

@Kimdrede1

6 жыл бұрын

Sads626 In the 1940s Witnesses claim to have seen a UFO crash in Roswell New Mexico... I'm not one who believes in UFOs and such but it is very interesting if you do the research on it.... it is claimed that in this UFO there were objects with advanced technology one being a microchip... possibly coincidence that our technology just seem to Boom over the last 70 or so yrs....

it would be happy if you do math

@oscarmoreno2585

5 жыл бұрын

YEAH

1:30 Best explanation of the history of life I've ever heard.

crash course you have saved my bio grade! Thank you soon much!

"I don't know how it happened... I wish we did but we don't". Hank, here is a verse for ya: Romans 1:20- "For since the creation of the world God's invisible qualities--his eternal power and divine nature--have been clearly seen, being understood from what has been made, so that people are without excuse". God puts the answer out there in plain sight for us. You just have to receive it.

@voyagerabove4034

9 жыл бұрын

I think people that bring talk of evolution into channels that are aimed at those that believe in creationism or intelligent design are obnoxious pricks. Conversely, I believe that those who believe in creationism or intelligent design are pricks when they bring talk of religion into videos aimed at those that believe in science. Please keep things peaceful and please don't push your thoughts on the unwilling.

@TylersReelFishing

9 жыл бұрын

***** I understand where you are coming from. My comment was, in fact peaceful. Have a great day!

@jorgepadua9124

9 жыл бұрын

TylersReelFishing Yeah, but the bible says Earth is 6500 years old. So, there goes its credibility.

@TylersReelFishing

9 жыл бұрын

Jorge Padua Not so at all, The Bible does not explicitly say how old the earth is. Creation was written in a 6 day format, but there is nothing to say that it was actually 6, 24 hours days. We do not know how long God's days were. One of his days could represent millions of years. I am a strong Christian and I believe that the earth is just as old as you think.

@foodwmel7770

9 жыл бұрын

TylersReelFishing I understand completely that you mean well. And while I'm not religious, I think it's perfectly acceptable to be religious and still believe in science and even evolution specifically. My biology teacher is religious, and her reasoning was always, "Why does science have to disprove religion? It can just as easily be the answer to religion." I like the passion in your comment, and most certainly the lack of "Religion is best!" that I normally hear, but this is where I must disagree... If scientists were to simply tell themselves "God made it this way" every time they hit a road block, not much would be discovered (or, at least, not at such a quick pace). They may not know the answer now, but with enough study an dedication, maybe in 100, a thousand, or even 100,000 years from now we'll know the answer. To me, science and religion can come together in an answer if a person decided to make that connection, but she never be mixed while trying to find said answer. Hope you have a good day!

I can hear a light Russian/Ukranian accent in Hank's voice.

Agreed. Some of us are here to learn. I don't want to hear a religious debate, find a newscast debate or something else to go argue at.

I love Crash Course ! I have watched all of the psychology and biology videos. I am excited to watch this series , chemistry is next. So thank you for making all this videos ! I also love vlog brothers

13:37

@howellotr

6 жыл бұрын

Bill Carroll yeah?

pp

I'd never even heard of this channel until I clicked a random link in a SciShow video, and I only discovered SciShow because I was looking for videos on human evolution.

Is it sad that I have a couple of degrees and almost a doctorate in life sciences and still love these?

I have seen the evidence for evolution which I can independently verify, please show me your evidence that this is a lie and I would be happy to independently verify it against Islam, Taoism, Wicca, and the Chronicles of the All Spark.

Just love how we sidestepped how unfathomably unlikely it would be for the first life form (3:45 to 4:15) to naturally generate: its somewhere around 1:the amount of electrons in the observable universe, I freaking love scishow but even panspermia seems more likely than spontaneous generation.

I know a lot of paleontologists that would not like your use of the word "explosion"! The huge increase in diversity occurred over 20-25 million years. A lot of organisms we're finding new niches, and evolving to fill those niches. The preferred nomenclature would be the Cambrian Radiation!

earth formed 46 years ago? WOW. The earth is so old.

@LordDyson

9 жыл бұрын

I'm making a joke

@MrAwdfdf

9 жыл бұрын

4 600 000 000

@LordDyson

9 жыл бұрын

Lol

@thetruepure2

9 жыл бұрын

A little older than 4.600. right around 6,600!

@miguelcarmona3962

9 жыл бұрын

***** u tried...