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A Brief History of Life on Earth: The Full Series

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From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth before heading on over to https://www.youtube.com/eons for a deep dive. Hosted by: Stefan Chin Part 1 - Survival is Hard: 0:41 Part 2 - When Life Exploded: 9:34 Part 3 - Dinosaur Time!: 19:46 Part 4 - Rise of the Humans: 28:14 ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Kevin Bealer, Mark Terrio-Cameron, KatieMarie Magnone, Patrick Merrithew, D.A. Noe, Charles Southerland, Fatima Iqbal, Sultan Alkhulaifi, Nicholas Smith, Tim Curwick, Alexander Wadsworth, Scott Satovsky Jr, Philippe von Bergen, Bella Nash, Chris Peters, Patrick D. Ashmore, Piya Shedden, Charles George ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow
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Text Comments (620)
Internal Pain (2 days ago)
Jerrasic period? Never heard of it.
Puking Unicorn (3 days ago)
Ok I'm puzzled here. How where plants before the great arrival of grass?? Was it easier to chew for animals? how?
Nic (5 days ago)
Will all this be on the test?
jolly roger (7 days ago)
We aren't the the only Homo left, time science got with the program.
Erik S (7 days ago)
Well, that's an incredible number of factors that have come together at the right time for our species to arise. Beyond grass coming at just the right time, there's the fact that the size of our planet is in a goldilocks size (large enough to hold an atmosphere, small enough that we can escape the gravity with chemical propulsion), the distance of the moon being perfect for regular solar eclipses and tidaly locked ... Either the simulation argument is correct or we really are one of the first species in the galaxy or perhaps the universe to get to this point.
zamis21 (13 days ago)
Solumians, sound like something the Old doctors (not the new ones) would have went up against on some planet that needed a rebellion started.. He was good at that!!
ineedfiles (14 days ago)
how did anything copy itself without instructions?
BackToConstitution (17 days ago)
Take a pause after each sentence to give viewers a moment to contemplate what you just said! Without the breaks, I feel like quitting! It's 1:32 min ...Bye!
Izaya Magana (1 month ago)
Whole Lee Phuck
Amy Nicholls (1 month ago)
No I don't think, yes but it is The sun is a deadly lazer!!!!!!!!! 😨 😨 🤣 🤣
Hayley Rodgers (1 month ago)
Honest question, how do we know that the first eon existed if even the rocks are gone?
Luciano Veniziano (1 month ago)
*The mitochondria is the powerhouse of the cell*
Jay Duby (1 month ago)
Great Dying happened when god accidentally clicked the power strip with his toes.
Grimeto (1 month ago)
People rarely think that all the species we know about during these ancient times barely reach 1% of the actual number of species that evolved during this time. All the information we get is from fossils and they only form under specific conditions, not to mention all the fossils that were destroyed by numerous reason over time ... Makes you wonder what horrific/amazing things roamed our Earth and we will never find out about it .
Joram Arentved (1 month ago)
1000 mio. is - still - a MILLIARD & thus successively, pls. take it for, whatever it's worth, so I can find out - etc., 'J.A.,' 0056965056701.
Xo3 (1 month ago)
you also forgot to mention that our moon has an affect on how hot/cold our earth is. all those years ago the moon was very close to the earth causing it to be alot hotter then it is today. The further the moon is the colder the earth gets. Thankfully the moon is not leaving us at a rate which we need to fear.
Thank you
Heather Huber (1 month ago)
love this! thanks for all the hard work put into this
Sizzlean (1 month ago)
I want to be the first to point this out to whoever deletes comments around here. When you start a show out with the 4.65 billion year garbage, you absolutely show how behind the times you guys are. What the creator Yahweh did to honor his house with the Gematria which is brought out only by his priests at the place he chose to place his name (deut 12:5) is unmatched and will be the greatest wonder ever presented to man bar none. Trillions of stamps of approval and agreement is what I'm talking about which no religion on earth can claim. If you are clueless as to what I'm saying, then you are going to be late and will surely arrive in the wrong attire. You have enough info in what I wrote you can find it out if you simply do the research, the rest is up to you, but I promise you will have cake on your face if you don't figure out what I'm talking about. Peace
Sizzlean (1 month ago)
And soon you will find out that your plaid shirts didn't elevate your wisdom or knowledge one point and you were just a bunch of naieve kids who swallowed a bunch of lies from birth. One day soon when you find out that the creator himself is against doctors and frauds like einstein and all liars really, then you will become human, when you yourselves join those you make fun of today. I'll be there, it will be awesome, buckle up
francesca dibologna (1 month ago)
Are you auctioning cattle or producing educational content? https://www.youtube.com/watch?v=5oOj1EKSS6M Those dots and spaces between letters in books have an equivalent in spoken language too. Try reading a book without them? That is this video. I love PBS Eons Series but this is unwatchable because every sentence is crashing into the next. It's like car insurance adverts on the radio. As annoying and unintelligible. Sack your editing team. Ask for the unedited rushes back. Repost with natural pauses intact. Thank you.
CAS (2 months ago)
23:34 ...eoraptor=egoraptor???
CAS (2 months ago)
4:35 ZIRCON?? GO BACK TO VOLTRON im so sorry 😂
V (2 months ago)
How can all this happen from NOTHING, A big random Bang. Also where did this material come from? Also how did you know the earth is billions of years old? No observable solid evidence. All this can't come from nothing. Intelligent design makes more sense
Fred Parrish (2 months ago)
I'm going to be honest, I didn't read too far into the comments. But I don't see this. THOSE EARS.
MrLewooz (2 months ago)
190 creationists c*nts! in mach 2018! welcome!!! welcome aboard!!!! you are not alive because of god ( that low level arse) but because what is described above... now shut up or feck off!
V (2 months ago)
MrLewooz But..You believe we were once Rock then Fish then Ape LOL
Clara oswald (2 months ago)
So the anthropocene era started in 1780?
Clara oswald (2 months ago)
I say that because of the start of the industrial revolution since tgat was the beginning of us really affecting our planet
Stupid_Tree (2 months ago)
Bill wurtz explained the history of the world better ;)
noTmiZ (2 months ago)
cambrian explosion reminds me of another type of explosion.... thanks japan hue hue hue
airborne1 (2 months ago)
Sorry, just had to turn it off at 3:05. This topic requires more pause, reflection and articulation of the subject. While the content is good, the delivery at 200mph without pausing, reflecting on the subject not letting your listeners absorb the content is not good. Your videos have potential, but please slow down. Thank you!
Harisgok (2 months ago)
cyano bacteria are reverse humans
Max Vieralilja (2 months ago)
crocs are scary enough without running around on two legs...
Dustin Ward (2 months ago)
I guess Al Gore and the leftists still don't realise the earth is constantly evolving
BlondeyFox (3 months ago)
Hell yeah, the mohawk is a throwwwbbaaaccckkkk
Ron White (3 months ago)
I am curious if species can adapt to increase there life. Why can't homosexual adapt? I am not trying to be hateful. You have creatures eating one another so the prey evolved to become faster and what's hunting the prey also evolved. So why can't homosexual evolved and be born into a sexuality they fine appealing?
SupertoastGT (3 months ago)
C4 grass is why we still see signs that say “Keep off the grass”. One step and... BOOM!!!
xXRajorMajorXx (3 months ago)
Life, finds a way..
Jasmine Wood (3 months ago)
Jasper Ruysch (3 months ago)
Conservative alien increasing circuit reinforce stick grade guy compensation course.
Rayan Faure (3 months ago)
Responsible due visit over tackle necessity bubble stake requirement creative unfortunately couch
Timi Sterr (4 months ago)
My biology teacher at school did not except evolution. And although she taught it to us cause she had to, we also had to listen to her comments that "yeah, for me that seems impossible", "it is strange, but that's what the book says". so sad :(
The Anthropocene epoch started in 1950 CE. So yeah, if you're older than 67, or 68 ish, you're actually born on the previous epoch of geological history.
Dedrater (4 months ago)
No mention of Charnia?
DefunctNinja (4 months ago)
my favorite quote: "sand is less than amazing for your teeth"
America first (4 months ago)
Who is this artard????
Silver Fox (4 months ago)
Always hated biology, but this is sooo frickin' cool!
Deepak Gurung (4 months ago)
This has to be by far the most epic presentation you guys have ever made, Thank you so much Sci show, enjoyed through and through.
vmwindustries (5 months ago)
Could the Indohyus major have gone into the sea, because feeding there was easier then on land, due to the ice age created by the impact of the meteorite? I'd imagine that life forms in the water were not impacted as bad as the life on land. Hence the Indohyus major went into the waters to hunt, and evolved into the whales of today. Does that sound about right, or am I missing something?
marty slackjaw (5 months ago)
So, did Archaeopteryx get the worm then? Sorry.
Tiz Schnitz (5 months ago)
Can ya hear me bro?
Seraphs VII (6 months ago)
goin 2 my fav videos
Alex the Average (6 months ago)
WHAT?! you sir are wrong the Earth is only 5000 years old and a bearded space wizard created us in his image and sent his son to become a zombie to make sure we all knew whats up... ALSO when you say "zircons" I'm sure you actually meant Christ crystals ALSO ALSO everyone knows there are only two "era's" of Earth and they are the not dead Jesus times and waiting for dead but not dead Jesus times(now) but I'll forgive you for these mistakes....
Nic (5 days ago)
I had christ crystals for breakfast.
SunEagle Cherokee (26 days ago)
Alex the Average What drug or drugs are you using?
Jay Duby (1 month ago)
Careful with sarcasm, some people refer to them as facts now. Take a look at flat earth theory.
That Person (1 month ago)
Your understanding of the Bible is highly lacking. Have you even read it fully? Because firstly, it never said the earth is 5000 years old. Nor does the Torah or Quran.
burnt waffles (1 month ago)
the second a vegetable of the alphabet is antelope
Jeffrey Salvador (6 months ago)
Good video thanks for the education
Kit Marcos (6 months ago)
This makes me want to take up Spore again.
Austin Mitchell (6 months ago)
I got goosebumps when they got to the grass part
VanillaChocolateJ (6 months ago)
What if there are anaerobic life forms that saw earth and thought “huh. Nothing could survive with that much oxygen.”
Nmethyltransferase (6 months ago)
Why does ketamine work (whereas memantine fails) for depression?
TacComControl (6 months ago)
First, there was Eoraptor. And now, there is Egoraptor.
modolief (6 months ago)
36:10 -- Welcome to the Anthropocene Epoch
Danielle Wilson (6 months ago)
2:06 the atmosphere back then is what we are turning it back into with climate change...
Ahsan Shah (6 months ago)
poor grass!!!
ishma01 (6 months ago)
There is no mention of the influence of the tides due to the Earth's Moon in the evolutionary process. A number of species base their behavior and development to this gradually changing lunar cycle. Currently this cycle is 28 "days" with its current distance from our planet; previously, it is less and the tides may be higher & more frequent.
Kok Wui Choo (6 months ago)
Needs more Bill Wurtz
embe1 (7 months ago)
This video is simply awesome
Jess Marchand (7 months ago)
Should do a show based on Neil Adams theory of a growing earth and how ancient fish fossils are all found in the land and not in the ocean. Meaning that once the ocean was in top of all the continent's and only a small amount of land would of been visible. Look at all the core sample dates and put it in a computer program that takes away youngest core samples away from the old core samples and you can see all the continent's come together and fit perfectly . what is going on there? Did earth grow? So the oceans age slower due to being covered in water? Was earth once 3 times smaller? And did it hollow out? How could it get 3 times bigger if it didn't hollow out. There would be hundreds of miles of new space junk covering the planet of we grew that big because gravity pulled in stuff. Must of hollowed out. And how gravity works it kind of makes sence.
Jess Marchand (6 months ago)
Hm Grraarrpffrzz I just mean that once the ocean was on top of all the continent's. Of course the mountain formed after. Otherwise how could it of been under water. If it formed early it would of never of gotten ocean life fossils in it. I'm just saying that when it was being fossilized there was an ocean only on the continent's. The ocean is only 170 million years old. That's in its oldest place. So 170 million years ago the ocean would of been covering the continent's . earth grew 3 times it's size over the last 200 million years. Just look at a map of the ages of the earth ground.
Hm Grraarrpffrzz (6 months ago)
The fact that a marine fossil is found on a mountain does not necessarily mean that there was a far higher water level. It could also mean that the mountain formed after the fossil died.
Bob Drucker (7 months ago)
We've had a huge impact on geology through plastic and nuclear tests??
lol69_ (7 months ago)
theLegoian712 (7 months ago)
Hello, Eons? Yes Stefan sent me. I was promised dinosaurs with hollow butts...
Sollux Captor (7 months ago)
Peter Bayley (7 months ago)
I believe the earth is 11,000 years old. Just to trigger everyone.
gerald lucas (7 months ago)
Mere transfer frequently rydlg daughter literature type glance dinner practical.
Alan S (7 months ago)
19(937), 229(99), 23(2399), 317(76), 2019(2829), 313(119), 18(1620), 30(7788), 2018(9911), 1921(310), 1820(11666), 13(310), 14(77), 1620(45), 18(6:39), 51(339), 11(29), 38(11), 415. [23(10)22(10-2)8].
Nic (5 days ago)
No more beer for you!
Matt watson (7 months ago)
you guys talk too fast... settle down
renendarkfire (8 months ago)
What if The Great Dying was actually a previous iteration of sentient life on Earth, and they, too, messed up their climate with shenanigans? o.0 While I'm sure that's not the case, it does lead to interesting thoughts about how a future sentient species might view our impacts on the Earth.
CDILOZYTP (8 months ago)
"Eoraptor" there is so much goddamn waiting
Joe Mischke (8 months ago)
The term "Thagomizer" was made up by Gary Larson in one if his "The Far Side" cartoon strips.
campos3452 (8 months ago)
Just read The Bible it's easier to understand then this false video lol
EternalFlightVV (8 months ago)
The RNA world hypothesis is well accepted by scientists. I dislike how you present information in favor of it as if it is an opposing view. Life had already evolved the sophisticated mechanisms for translating RNA into protein. And since RNA and DNA are very similar, but because DNA isn't as chemically reactive as RNA, it makes sense that evolution would build on an existing mechanism (RNA -> Protein) by adding a the transcription step to convert DNA into RNA. (DNA -> RNA -> Protein) Especially since there are still RNA viruses in the world today. It would be more complicated to develop a whole new method that could create protein directly from DNA, in one step. Evolution builds on and tinkers with existing systems.
francesca dibologna (1 month ago)
totally agree. geochemical evidence from latest zircon analysis (terrestial, moon, mars, chondrite asteroids) is increasingly favouring the RNA world hypothesis over the DNA model as the starting point for life on earth (and potentially elsewhere). i can recommend this extract from a lecture i watched recently (Stephen Mojzsis, Uni of Colrado) re the RNA WH, which locates this model within the broader context of crust, atmosphere and radiation interplay c 4.4Ma. Truly fascinating. https://www.youtube.com/watch?v=KC5dZRpN6yg (PS. powerpoint is cut off but lecture text covers most gaps. research papers freely available on his homepage which fill in visual info gaps).
Smitty (8 months ago)
animals in carnivora are called carnivorans not carnivores (see giant pandas)
Smitty (8 months ago)
why do people keep saying amphibians came from the ocean and not fresh water?
webmuskie (8 months ago)
What about the Ediacaran? It's my favorite period, full of mysterious multicellular things which may or may not be animals and which may or may not be the ancestors of life on earth today
Iñaki Silanes (8 months ago)
22:38: "There probably weren't many triassic dinos in the coloring books you had when you were six, because they hadn't developed much yet". I find this assumption about my age quite insulting, sir.
Jeff (8 months ago)
This contradict the Bible! 🙈🙉🙊
CDILOZYTP (8 months ago)
Bangbang Liu (8 months ago)
The Bible is wrong, so... START THE RELIGION WAR!
Relax (8 months ago)
The amount of information we've learned in such a small time frame is awe-inspiring. Thinking about the huge leap we made as a species really makes you wonder how things are going to change in the future. How far will we reach? It's shameful how people are still killing each other over religious views or disregarding scientific evidence because it conflicts with something they were taught growing up. Times change, and i hope they change some more.
edge21str (8 months ago)
23:33 I almost thought I heard Egoraptor.
CDILOZYTP (8 months ago)
There is so much goddamn waiting
Minhao Lee (8 months ago)
Are these old videos of sci show? How have i not ever watched them?
Jobie Lee (8 months ago)
in awe- its awesome and aweful. -vsauce, 2013 id say we dug our own grave. we are such and outstanding species yet we took it for granted. a home like earth is to be protected not destroyed. :'<
Weedle Guy (8 months ago)
The Earth says back, " Bye, its been a short ride"
John Kiljan (9 months ago)
I've read it in books before, but it was really nice to see this video. I can't help but wonder what the next 40,000 years or so will bring. Thanks!
Mike Marks (9 months ago)
I like this version better
Rand Huso (6 months ago)
13:25 reference to Doctor Who #3 (Pertwee) of the original series. 24:57 reference to Gary Larson's Thagomizer.
Michael Turano (6 months ago)
Rand Huso The scientists actually got the name thagomizer directly from a far side comic
platinumamr (9 months ago)
Next step is the rise of our successors: the wall-Es!
Chinzo Scribe (9 months ago)
SquidKing (9 months ago)
Snowball earths and Cambrian explosions. Like if u get the reference .-.
Leon Janssens (9 months ago)
Alternative hint we biological approach boot efficient unknown suit.
Benjamin Miller (9 months ago)
Thanks guys keep up the good work.
danny boyo (9 months ago)
98 Xristians are still watching this channel for some reason.
om k (9 months ago)
after every minute you guys are saying:- "We are not so sure about this....." If that is so,why the F#CK did you make this shitty video
mikeissweet (8 months ago)
om k Because in science you cannot be sure of anything, but you continuously gather evidence to build up your understanding. Even _gravity_ is a theory, but you probably have a good mental model of how it functions (i.e. you can look at a block of steel and know it's going to have a stronger attraction to earth than a box of tissues before you even touch it.)
TuneBlender (9 months ago)
Freaking awesome, as usual!
CC CC (9 months ago)
Thanks for putting this together!
Sophia Marie (9 months ago)
Evolution but every time a mass extinction even happens it gets faster

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