T. Rex Granddaddy

[Tiagosaron100]

muito chato o anuncio

[Tobius11]

fuck the scavanger theory ..it doesnt match facts

[LeonardoYokhana]

things like this make me wonder how did spinosaurus grow bigger and wiegh more than t-rex and how his arms are more deadly than his teeth

[KrfNYC2]

0:32...my mom when my sister won't clean her room...that's me in the back.

[buffaloface1]

remids me of spore

[jjrudki]

Lol @ CGI T-Rex

[Doriahism]

damn nature you scary

[rieg10]

O that i my great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great,great,great,great,great,­great

[ivanpardoo]

este video esta bacan!!

[XxComablackxX1937]

Why are people still bickering over T-Rex's small arms? So what??? He didn't need his arms.. He had the strongest jaws of any land animals.. all he needed was 1 bite to disable the entire animal.

Not to mention his huge fucking head built like a battering ram... pretty easily.. knock the prey down, bite it.. game over

T-Rex was an animal built on pure force..an those ''little arms'' helped lift his fat-ass off the ground so they werent that weak.

[chaukevdude5607]

@XxComablackxX1937 did u see all dinosaurs in the world

[rlinfinity]

Nat Geo animators need to work on their dinosaur gait. Particularly, theropoda. It looks like a retard walking

[matuzikas]

some scientists think that t rex is from the chiken family

[falcoperegrinus82]

@matuzikas the chicken family? that's totally ridiculous, it doesn't even make sense.

[matuzikas]

@falcoperegrinus82 actualy yes.its in da skull

[falcoperegrinus82]

@matuzikas "Some scientists" think T rex is from the chicken family because of the skull? The chicken family as in Phasianidae!? lol What mentally sound scientist would ever say that? Tyrannosaurs were not even avian dinosaurs, let alone birds in the Phasianidae! Nigga, pleeeaaase.

[matuzikas]

@falcoperegrinus82 eh i just was in it a science site

[cf572]

t-rex lik's fighting head fu that's a joke of a dinosaur fighting style using your'e head for fighting in biting lolol!

[Fingerboardmaster100]

LOL WTF ROFL LMAO LOL WTHIT OMG WTH LOLOLOLOL 2:21

[bobegnopS96]

you are crazy!

[KILLSHOCK1100]

2:08 it sort of looks like spore

[moellerochtrup]

Super !!

[dreadlessdubey]

manu chao

[broskiiful]

did dinosours have penisies? thats what i care about

[TonyFirelli]

@broskiiful Yep like those type of animals that have them inside or something like that...

[KRandMJ]

That Raptor just got owned 0:31

[TheFreakifier]

0:32 FALCON BITE

[uignioxf]

thats a surprise,knowing that such huge and terrifing dinosaur came from this small animals.

[dertyFilms]

lol t-bagging dino at 2:12

[LukeNikolau]

@dertyFilms Lmfao a T-Bagging T-Rex XD

[B1gF0x]

what is the programs name

[theatheisticlown]

The Tyrannosaurides are proud members of the Chinese-American community!

[camelotgeorge33]

click 0:01 tos skip commercials

[spacemarshmallow]

@camelotgeorge33 or F5

[EtaCarinaez]

tyrannosaurus rex is the perfect example of evolution gone mad. 6 tons of pure killing machine. its so awesome to know such giants ruled the earth for hundreds of millions of years.

*plays jurassic park theme*

[swinghd]

here is what my son was repeating!!! 

[SupremeAmerican]

largest tooth ever found for a spinosaurus is 3 inches, most are 1-2 inches. This would do NOTHING to a t-rex, it would barely break the skin. Spino was a fish hunter. Commence your rage.

[DrKaiju2000]

2:12 lol hes t-bagging!

[EmilyJustem]

Then again, (talking about my last two posts), I'm only 12. I'm probably wrong.

[EmilyJustem]

@EmilyJustem (cont'd) I believe most of the T-Rex's skull archeologists find is sedimentary rock, because the brain was so tiny yet it's head was so big.

[EmilyJustem]

In the animation, the tail wasn't as long as it should have been. The head would not have been able to stay in the air if it didn't have weight in the back. The tail would have to have almost touched the ground in order for the T-Rex to have the head above ground. Or, as I personally believe, the head of the T-Rex would have to be much smaller, because T-Rex's brains were as small as a walnut; all it knew how to do was use it's tooth to crack out of the egg, hunt, and mate.

[mthzb]

it not a raptor it's a proceratosaur

[eddiefuzz]

That T rex has a slightly silly walk cycle.....

[EmilyJustem]

@eddiefuzz The animator made the tail not as long as it should have been, so the scientists directing the animation probably saw the tail and told the animators to make the walk just so.

[narbikjanet]

did they find a complete skeleton? because you can never find a complete skeleton.

[randomer1432]

they decided that little thing evolved into the t-rex because they had similar hip bones? a bit of a leap aint it? lol

[mthzb]

@randomer1432 well if you look at the skull, and later dinosaurs like guanlong, like alioramus, then you get a clue. but guanlong was the bare minimum required to be a tyrannosaur.

[ReconMasterCheif]

thats the fattest trex arm ive ever seen.. lol

[rabbittown1900]

何て言っているか分かりませんがスピルバーグの映画ジュラシック­パーク好きです！。

[immafirinsomting]

how bout dilong paradoxus?

[fishandchips8956]

-_- hmmm....

[lovelykiller999]

@:33

Its not a fucking raptor.

[dimzaiboom365]

I saw this when I was 8 I think, then I coud not see it anymore, can someone tel my how this was called

[twinkstance]

@dimzaiboom365 walking with dinosaurs ;)?

[lifeform106]

@dimzaiboom365 it is called dino death trap

[Scabia25]

Guanlong? wonder who named it that >.>

[ImAnotherZang]

@Scabia25 guanlong means 冠（crown) 龍 (dragon/in this case dinosaur).

They also named Dilophysis (however its spelled) 雙冠龍. 雙 means double.

[amenayfazz]

found on china, chinese name?

[ImAnotherZang]

2:21 - 2:23 his tongue was flicking with a weird sound, so lol

[XxComablackxX1937]

T-Rex didnt need claws to kill it's prey, It had the most powerful jaws of any land animal. Not to mention all the muscle's it had in it's neck and it also used it head like a battering ram to disable prey.

Both in my opinion are way more affective then claws.

I really hate Jack horner, Rex was just as much predator as scavenger. Lions steal from hyena's but there still considered predators. Just as Hyena's, Crocs, Tigers. Ect.

Had T-Rex had long arms and claws he'd just kick more ass.

[tramsusch]

This is just theories

[FluffyBunniesOnFire]

Mine is called the Diplodocus.

[royalsteven]

Baaaahaaah really? Diplodocus come to dinner O_O

[MultiPivotmasterdx]

the arms of gwanlong are long lolz

[quik76]

pause at 00:51

[MichelleMcCoolAddict]

haha rawr sign :D

[kezadrone]

That CGI looks like shite.

[Necronomicon888]

I don't think the T-rex was a natural hunter. Due to the small size of the arms, it would be too risky to hunt prey, sinze the smallest of the mistakes would make the tyrannosaur fall and break all of their bones, and finally it would just accidentally die. It was more of a carrion eater, with powerfull jaws to crush and eat the bones of the carcasses, or if it was a predator, it was more of ambusher that hid in the thick flora of it's enviroment to attack.

[thedirtyfecker]

Actually it is very obvious to me. All animals who have tails have them for the purpose of balance. T Rex arms became tiny to enable its head to grow bigger in order to balance with its tail. The bigger head allowed bigger prey to be killed and thus support such a big predator. in order for it to run it needed excellent balance. The arms became tiny as the head became larger. If they had not died out the arms would have disapeared completely, much like a snake.

[CallMeBionic]

The awesome thing is kids think its really short and stuff but its a bit longer then a grown mans arms O.o

[royalsteven]

If this theory is right, why then is my penis inches bigger then my arms? o_O

[hanxopx]

@thedirtyfecker Yeah and just imagine if T-Rex got a long arm and a longer tail to keep the balance, I believe the result would be extinction of everything.

[NWA90s]

@hanxopx and what is the spino had the bite force of a t rex?

[holownsu]

@hanxopx u actualy scientests think that the t-rex was a scavernger due to it short arms and badly desighned teeth and also you dont see animals go up and jsut head but there prey with there mouth you see them grip there prey fisrt there for the trex had no way to grip its prey so it would have to use only its head. and this science is alott newer than this cid trust me

[SupremeAmerican]

@holownsu It has the body structure of a warm blooded animal, and if you think it wasn't warm blooded, then it was endothermic and nothing less. So it was capable of sprinting and jogging at will.

[hanxopx]

@holownsu I didn't get you, I never said Rex was a scavenger, I believe he was a perfect hunter "though we can never 100% tell" but if it had longer arms and tail then he would have extremely too much features than any other ground creature.

[Tazy50]

@hanxopx Except for Spinosaurus.

[hanxopx]

@Tazy50 How is that possible? the Spinosauridae were extinct long time before the Tyrannosauridae.

[Tazy50]

@hanxopx Oops, forgot about that LOL. Thanks for reminding me ^_^

[Khornedevotee]

@hanxopx: Give the Trex humanoid muscular arms and hands with thumbs and fingers and you will be done for it if the Rex gets a hold on you. Then the Trex will finish you off with his/her powerful bite. Not a pleasant thought at all haha XD.

[JohnshiBRPG]

@thedirtyfecker It would have been the first dinosaur to be a bi-pod if not for the extinction.

[ImAnotherZang]

@thedirtyfecker snake? frankly if you're comparing that to the disappearance of hind limbs during whales and dolphins evolution, frankly i can't agree with you. at least from waht i heard, a very small, other version of tyrannosaurid was found, raptorex to be exact, that is barely 3 m long, size of a deinonychus, but stll had those small arms. that suggests that the arms actually had a usage, theories on that i have not read, but im sure they exist.

[JAWSlover1999]

@thedirtyfecker i think dats how snakes evolved from chong long 2 rexie from night at the meuseum 2 a snake(s)

[NicosMind]

@thedirtyfecker Explained better than most scientists though i disagree that they would have disappeared. Its not like T-Rex slithered along its belly and they would have become a disadvantage for it. Or that it swam in the sea which means its arms would act like a drag. I think they were as small as what was needed. Unless T-Rex creatures themselves found smaller arms attractive i doubt they would have been bred out.

[SuperMrDelgado]

@NicosMind evolution

[NicosMind]

@SuperMrDelgado Ive heard of it

[SuperMrDelgado]

@NicosMind that's why they would have lost there arms not because of selective breeding

[NicosMind]

Evolution doesnt state that if something starts happening that it will continue 2 happen until its impossible for it 2 no longer happen.Ie Elephants that were stranded on Greek Islands shrank til the size of goats.They didnt keep goin til they hit the size of rabits or mice. T-rexs arms might have shrunk so that its head could grow but over all animals were restricted from growing larger due to rules of physics and oxygen. Plus plenty of animals have useless parts. If it doesnt hinder it wont go

[norman1234able]

@NicosMind 

[turnermedman1231]

@thedirtyfecker could it be that trex evolved from a four footed dinosaur, and that it's front legs were just getting smaler and would have compleatly gone if they had not all been woped out?

[PrototypeU41]

@thedirtyfecker ACTUALLY, whales have fins and arms and leg joints and they even show still in the skeletal bones. Dont act like your a expert, you remind me of the people on history channel just trying to get your two cent opinion in.

[mckricks1]

@thedirtyfecker I heard speculations that the T-rex might have actually been a bird. I dont really think scientists can say they pinpointed how a species evolved cause it just happened so long ago and so much stuff happened. But ya cool point you made.

[Octagonapus97]

@thedirtyfecker Nice theory.

[falcoperegrinus82]

@Octagonapus97 more like a hypothesis.

[falcoperegrinus82]

@thedirtyfecker "If they had not died out the arms would have disapeared completely" This is not necessarily true. It's arms actually had lots of musculature attached, which suggests they had considerable arm strength and that they were not merely useless vestiges.

[hypnosegirl16]

@thedirtyfecker Scientists believe that T-Rex was more likely a scavenger.

[LeonardoYokhana]

@hypnosegirl16 actually fossil evedents shows that t-rex may have lived in family packs so they may have hunted somewhat like a lion

[monyta542]

actually Guanlong evolved to Albertosaurus than Tyrannosaurus Rex

[uguku]

that is impossible befor 6000 years it had already the agypters

the earth is i think 3 or 3,5 mio. years old

[TripleX2go]

The other videos says that the earth is only 6000 years old. Starting with Adam and he was walking with the dinosaurs.That guy in that video had on a lab coat and a dinosaur tie.

[lukathekiller555]

at 2:10 is the dinosaur dancing the beginning of dance

[NBaimf]

I don't want to watch fuckin commercials on you tube.

[S0XF0X]

Lordy, the 3D animation HURTS! Why do some of these programs hire such shitty artists?

[Hashpotato]

the t rex bitin the other dinosaur at 2.54 turned me on

[hotpants69]

how long did it take for t-rex to evolve from guanlong? surly the many mutations that were required took place in a span of time far longer than humans have existed.

Don't think that they are trying to say that it was a quick process.

[gregrutz]

Dinosaurs evolved for 180 million years, man didn't exist 10 million years ago.

[crash2cute]

guanlong appeared 150mya t.rex evolved 68mya so about 80million years

[hotpants69]

of course there was subtle change. they are just going over everything so fast.

imagine the egg of a t-rex one day coming out of the guanlong- BUUURST!--- no, of course it doesn't happen that way

[micitoishot]

t rex mates with a raptor...pwnage

[ssbmfan22]

raptor gets squished or runs out of sperm XD

[Rinon20]

I don't understand how they got to the conclusion that t-rex evolved from guanlong... I mean, evolution is normally about subtle change. Humans haven't changed that much physically in our entire existence so how did the t-rex do it?

[sirsoccerdude366]

we reproduce slowly compared to most animals thus slowing evolution.

[Laceytube3]

@ Rinon, ur a moron, the earliest humans were 4foot tallest and still had sort of a hunchback and approximately 60% more hair on their bodies, after a couple thousands of years, the spine become straighter and hair loss, then up till about the 1900s, people become like HUGE, like 7-8feet tallest i've heard

[Rinon20]

@ Laceytube3 - Well that's nice to know that you, a complete stranger think i'm a moron. You not only put "ur" in a sentence before claiming lots of things and making assumptions about certain aspects of evolution etc. I'm not really an expert on evolution and such, and i'm not going to bother myself finding out whether what you've said is true, because i'm 99% sure it won't be, and I will have wasted my time as I have done just now.

[crash2cute]

we started being 2ft tall tailed monkeys and before that little racoon things. They can tell it is a tyrannosaurid because the distinct distance, size and shape of a tooth or tooth crown that it is a tyrannosaurid.

[THEPAINE552]

omg that was amazeing

[stuchly1]

well. no doubt the jaws were enough to do all the job.

[LinusLOST]

I think that T-Rex adapted to the fact that it didn't need its arm to kill and rip apart prey. Its teeth and jaws were enough.

OR it could be a mutation that got passed down so T-Rex got bigger and stronger than its ancestors to adapt.

I don't know, anything's possible.

[kirter23]

:-)

[paulblammers]

I think that the T-rex had those weird arms because they didnt need them anymore and stoped using it because his jaws were strong enough to kill his prey.

I think that if the T-rex would have lifed longer the arms would have been disapeared.

[Gattebayo]

ddude he had no arms only legs

[Dracomancer350]

an ancestor of t-rex hmm finally we can get some background on the tyrannosaur family.

[leekenobi21]

I vote that "Guanlong" needs a new name. Because "Guanlong" really doesn't inspire awe the way a dino name should.

[Jallorn]

They just discovered it a few years ago. They'll probably give it a latin based scientific name once they find more about it.

[GECKOMAN310]

Iewewew

[sporedude975]

the t-rex arms shrinked during eveloution because it's head was growing duh im 11 and I figured out stuff something like that it was easy

[Doliath]

You actually have a rather skewed idea of how evolution works...

[ICEraptor1111]

False.

Sporedude Your Just Really...Stuiped...

[Albukhshi]

not necessarily.

the change in the T-rex's skull size does cause a shift in the center of mass on the animal, leaning it too far forward (the skull was over 600 Lbs to my recollection).

it is therefore logical that there was a coevolution going on, with the arms shrinking and changing the motion angle in order to serve some new function (those arms were not vestigial) and at the same time increase head size without change to the center of mass.

[ICEraptor1111]

meh you used alot of big words soo..

ill let u pass

[Albukhshi]

paleontology student hoe!

:P

but seriously, I'm a Junior in Colorado state university, majoring in Gelogy Conc., and hoping to make a PhD in Paleontology.

its tough, but worth it.

[iridium65]

To the contrary, what evidence do you have, to say that the arms were not vestigial? And on top of that, the very event of shrinking arms, proves the vestigial nature of the arms. The head served as the primary predatory asset. Another possibiblity is that they were examples of convergent evolution, but I doubt that idea. This is not an attack on you or any thing of that nature.

[Albukhshi]

no, not at all. all argument is good :)

but I have evidence that they weren't vestigial: I'll PM you with them, as they'll clog up the response (long names).

there were 3 (third had no claw) fingers to the T-rex. those formed a convenient meat hook. the arms also, while small and relatively limited in motion, are very muscular, able to lift a fellow each (~200Lbs). so there was a function to them.

a totally vestigial arm can be seen in carnatorus, and its very diff.

[Albukhshi]

cont.

yes, the head serves as a primary asset to the arms. In fact, I explained in my earlier post why the arms might have shrunk without losing the musculature (i.e to accomodate the head). and to be fair, no one is certain as to the exact function ( I don't think I claimed to know), only that they were muscular but restricted.

and I do not follow: what is T-rex convergently evolving with? unless you meant coevolution, which is possible, and somewhat common.

[DemonDNF]

I'm guessing that the arms were useless for T-rex. It's not like it could pick meat and carry it to it's mouth, or tend to its young (can't see what it touches). They may have relatively lots of muscle power, but ended up being vestigial in all practical terms.

[Albukhshi]

a fair point, but just because the range of motion is limited, doesn't mean an Organ is useless.

actually, the range of motion and arm size of T-rex suggest a very specialized use-stress fractures too are a clue-stress fracture come from useage, not "pure" accident. I recommend Carpenter et al.'s work on T-rex arms.

also, a truly vestigial arm would be more like Carnatourus' or a Moa's (minimal/no arm musculature) nature rarely gives powerful muscles to useless organs-its a wast of energy

[badboy69yoda]

why does it walk so weird? look out retarded dinosaurs!

[GothicMuffinz]

xD made me lol 2:22

[luke94123]

Very informative video about evolution!

[suudssuuds]

it kinda is true

maybe t rex arms would just shrink and shrink till no arms at all

or t rex arms weare about to evolve

to big ones and he would be the unbeatable king of the planet

[Unitronus]

Their gay because they stomp around and eat stuff? That makes no sense what so ever. Or is it because YOU stomp around and eat stuff (meaning your gay) and you don't like someone else taking that place for you. Makes sense doesn't it?

[caemawred]

lol dinosaurs + you = fags

[shahherwan93]

wtf

[caemawred]

i keep onions in my panties to keep the one-square lego men away.

[WalkingHazy]

Homophobia is gay.

[mickXfan]

coooool!

[Drake14161337]

Dang, I want that program! =P

[DrlchknJr]

wtf? the gaun w.e had a crest? are the scientist sure they're not wrong and they're not just prehistoric giant chickens? lol (with teeth)

[ctfchris]

That's some really clunky CGI. Interesting discovery though.

[azzwilson]

Dildosaurus what?

[choirsucks]

isnt' that a dilophosaurus?

[Dinobot2468]

the diloph looking thing was the start of the t.rex

[GigaSpinoTrex]

Dilophosaurus had two crests. Guanlong had only one crest and Dilophosaurus was slightly larger.

[PRINCEofPECICA]

they should clone it!

[Legostarwarsfreak55]

1:22 it looks like the dinos r retards

[metallikskater]

hey man, how do you link a part of the video in a comment? Cause I still don't know how to do that. Please can you help me. Thanx

[communistrecords]

The thing that annoys me with evolutionary debates is that alot of people get macro and micro evolution mixed up. Micro evolution are changes small changes in species that usually don't stay around long, while macro evolution creates a new species over time.

[godzillaisnuclea123]

dont you think that ancient t rex thing looked very similar to a dilophosaurus with the crest and body shape.

[communistrecords]

A little.

[karlenildo]

prfiro galinha kkkkkkkkkkkkkkkkkkkk

[mystisme]

this video was to short where is the rest of it it is very interesting

[Ace837]

0:31 is funny

[kontuutbusook]

well maybe.. its from t rex to "guanlong"....

and lastly... evolve to chicken...

[markVIIchick]

I know, its crazy every time I think about it.

If that's the case, I bet T-rex tastes like...er...uh...like chicken?!

[Albukhshi]

more like emu actually :P

[ackles01]

looks like a giant chicken with no feathers and a crest

[jedihunter176]

At 2:07 yeh can see the dino's balls :P

[TheJPOG]

i've seen this on tv before

[DJJimEofficial]

wow

[vintagevic1]

no one has set a date, except one cult who is now dead.

2012 fyi is about planet X passing through our galaxy as it has every 3600 years. Its gravitational pull will tilt the earth on its axis. Your scientists have spent millions building a telescope in the south pole just to study x.

Now mock the coming of 2012 LOL.

[NOOBHACK]

we would know about it by now, Slughead

[vintagevic1]

its too bad that thhose fear mongering people have blinded you to faith. you obviously have sour grapes and that has become a cover for your love of evolution aswellas a cover for a hate for God.

Thats the obvious painful triuth about you and others who tout evolution over faith

Too many idiots beli