|
T.Rex Couldn't Run?!
|
|
Topic Started: Jul 31 2017, 02:04 PM (1,342 Views)
|
|
ÐK
|
Jul 31 2017, 04:25 PM
Post #16
|
- Posts:
- 627
- Group:
- Members
- Member
- #1,043
- Joined:
- Apr 29, 2013
- Gender:
- Male
- Nationality:
- Scottish
- Favorite Quote:
- "In the absence of proper data, speculate wildly". ~Mark Witton, Pterosaurs
- Also known as:
- DrawingDinosaurs, D for Dong
|
For a 40ft long, multi-ton biped, the estimated speeds of Tyrannosaurus are a pretty decent clip, it would hardly be lumbering around or anything.
|
~Projects~
• Earth Without Earth; Like nothing on Earth...
- Quote:
-
In the absence of proper data, speculate wildy.
~Mark Witton, Pterosaurs (Chapter 3, page 18)
- Quote:
-
pfft, DK making a project
~Troll Man, Skype (15/2/15)
- Quote:
-
I'm sorry but in what alternative universe would thousands of zebras be sent back in time by some sort of illegal time travel group to change history and preparing them by making gigantic working animatronic allosaurs?
~Komodo, Zebra's sent back in time (4/1/13)
|
| |
|
Troy Troodon
|
Jul 31 2017, 04:27 PM
Post #17
|
- Posts:
- 1,583
- Group:
- Members
- Member
- #177
- Joined:
- Jun 4, 2009
|
- ÐK
- Jul 31 2017, 04:25 PM
For a 40ft long, multi-ton biped, the estimated speeds of Tyrannosaurus are a pretty decent clip, it would hardly be lumbering around or anything. Like how much?! 15 mph? 20?
|
|
I was benevolent and good, but misery made me a fiend!
|
| |
|
ÐK
|
Jul 31 2017, 04:33 PM
Post #18
|
- Posts:
- 627
- Group:
- Members
- Member
- #1,043
- Joined:
- Apr 29, 2013
- Gender:
- Male
- Nationality:
- Scottish
- Favorite Quote:
- "In the absence of proper data, speculate wildly". ~Mark Witton, Pterosaurs
- Also known as:
- DrawingDinosaurs, D for Dong
|
Most current estimates generally fall within that sort of range, yeah.
|
~Projects~
• Earth Without Earth; Like nothing on Earth...
- Quote:
-
In the absence of proper data, speculate wildy.
~Mark Witton, Pterosaurs (Chapter 3, page 18)
- Quote:
-
pfft, DK making a project
~Troll Man, Skype (15/2/15)
- Quote:
-
I'm sorry but in what alternative universe would thousands of zebras be sent back in time by some sort of illegal time travel group to change history and preparing them by making gigantic working animatronic allosaurs?
~Komodo, Zebra's sent back in time (4/1/13)
|
| |
|
LittleLazyLass
|
Jul 31 2017, 04:33 PM
Post #19
|
Proud quilt in a bag
- Posts:
- 8,633
- Group:
- Global Mods
- Member
- #1,463
- Joined:
- Jun 18, 2014
- Area of expertise:
- Alternate Universes
- Nationality:
- Sorry, but why do you want to know aboot my nationality, eh? Uh... sorry, that was rude of me. Sorry.
- Favorite Quote:
- "you know you're a nerd when you search Wookieepedia for porn"
- Also known as:
- You can call me Little; full list of old names found through profile.
- Gender:
- Trans Questioning (see link in sig; feminine pronouns)
|
I would assume if Tyrannosaurus couldn't run then Edmontosaurus of similar size isn't gonna do any better; Denversaurus, Ankylosaurus, and Triceratops (which was more common than hadrosaurs) likely weren't going anywhere fast anyways. It didn't need to be fast in a vacuum, just fast enough to outrun its prey.
Now, Tyrannosaurus does have running adaptations, but these are presumably inherited from younger growth stages and smaller ancestors, merely passed on to the slower adults.
|
totally not British, b-baka!
You like me (Unlike) I don't even really like this song that much but the title is pretty relatable sometimes, I guess.
Me  Forum user Uncanny Gemstar drew what is supposed to be a me. Thanks! Spoiler: click to toggle As they walk in, they're greeted by a small, poorly kept pathway leading to a poorly constructed Japanese-style gate. Behind this, a small field made up of corn, rice, wheat, potatoes, among other plants is contrasted by large piles of books, as well as a few rather out of place looking laptops. Off in the corner, a small woman, with long, striped, and strikingly colorful socks, no shoes, unremarkable denim shorts, a large, fancy black coat, arm warmers, glasses, a tuque, and somewhat unkempt, mid-length blue-and-pink-streaked red hair, is rummaging through a trash bin, located behind a sign saying "employees only". She continues this for a while (walking behind a wall to change her outfit now and then), until one of her visitors coughs. Startled, she looks up, apologizes, and grabs a handful of textbooks and novels before daintily running off to join them. What, you want me to tell you what these mean? Predenterra The (Lost) Lost World The Standing World Read First Clarifications on my sex and genderSorry if I come off as rude, I don't put much thought into word choice sometimes. I'm also super prone to editing my posts, sometimes multiple times, in the minutes following posting. For the love of god, take my posts from my earlier days on the forum with a grain of salt. I was not particularly knowledgeable or mature back then. Some of them are so cringe-worthy I can't even bring myself to look at them. Words Maybe Great Words - Words To Spec By
-
It would have to be something extremely alien, pushing the limits of our imagination. But those are always my favorite kinds of life. ~~The Words of The Xenologist
- Words To Live By
-
Ignorance is never insulting if you're willing to learn, we're all ignorant about most things. ~~The Words of Lamna
- Words I Live By
-
Yeah, and even if you don't agree with creationists on that concept, that doesn't mean they can't be decent people. I have friends who are creationist (possibly even young earth) that I get along with fine in general life. I don't think they're right of course, but that doesn't make them intellectual degenerates. ~~The Words of forbidden3
Member Quotes - jman123
-
Ass-breathing fish-lizards? Sounds like a punk rock band
- Sheather
-
"Holy fucking shit a toilet paper roll! Our favorite thing!"
- Urufumarukai
-
Tyrannosaurus aquastronka
- Kamineigh
-
Myo, if you don't stop reading the YouTube comments...
- Lamna
-
Are you saying what I think you're saying?
Sheather bathes in cum?
- Cephylus
-
And last night I dreamed I was blowing up a Kindergarten with a grenade launcher for no particular reason...
- revin
-
Oh, and of course more people get killed by selfies than by sharks. Of course.
- Parasky
-
SHEEEEAAAAATTTTTTHHHHHHHHHEEEEEEEEERRRRRRRRR!!!!!!!!
- whachamacalit2
-
The smell of rotting flesh really kills my appetite, surprising, but the visual appearance of corpses makes me hungry. Is that weird?
- Ebervalius
-
I mean, let us say I'm a genderfluid blurflux demi-romantic woman who is sexually attracted to men, but only if they are Melanesian and have a voice like that of Nicholas Cage. Okay, so what?
- trex841
-
When I first saw that picture, I thought you were dissecting a condom.
- Mr Mysterio
-
All hail Robo-Stalin.
- Peashyjah
-
Seems like everything in this project is now dead.
- Stealth Rock
-
Seagulls are pretty much trees, right?
- Watcher
-
We all must finish chapters of our lives to go on to the next. Sometime this means leaving behind versions of ourselves that don't want to die.
- Yiqi15
-
For April fool's, we had to make an orgasm that resembled a human foot.
- Flisch
-
im the black market
- CaledonianWarrior96
-
He was a skater birb, she said tweet you later birb
- Most People at Some Point
-
Quotes - Some dude called plucas1 from Youtube comments
-
Funny, isn't it, that our world needs Clark Kent a lot more than Superman.
- Xenoblade Chronicles
-
Even though he is our creator, that does not afford him the right to take our lives on a whim. But that is the thinking of a homs. He is a god. Such morals cannot apply to gods. So you think we should just shut up and die?! If that is the fate decided by a god. You are mistaken if you think we will simply accept such a fate and wait to die. We'll never stop fighting. Not till the end. To Zanza, the outcome is the same. Thus your logic is flawed.
- Hades - Kid Icarus Uprising
-
When freaky aliens give you lemons, make freaky alien lemonade.
- Kid Icarus Uprising
-
But Souls are delicious. They're like bacon - they taste good on anything. But if you eat them, you completely remove them from existence! They can't move on or... or be reincarnated! Huh. I never really gave it much thought. Besides, what do you mean by reincarnation anyway? You know, being reborn as someone or something else. Which means different body, different memories, different experiences, yes? So isn't being reborn as "something else" the same as being "removed from existence"? I... I... eating souls isn't right! That depends on your definition of "right". All living things survive by eating other living things. So what? You're a god. You should be above all that! Gods are above living things, which doesn't necessarily mean we care about them.
- Some Dude on BBC Two
-
You are being shagged... by a flightless parrot.
Stuff
|
| |
|
Troy Troodon
|
Jul 31 2017, 04:40 PM
Post #20
|
- Posts:
- 1,583
- Group:
- Members
- Member
- #177
- Joined:
- Jun 4, 2009
|
Triceratops and Ankylosaurus are still pretty dangerous prey to take down, especially Anks.
|
|
I was benevolent and good, but misery made me a fiend!
|
| |
|
kusanagi
|
Jul 31 2017, 05:22 PM
Post #21
|
- Posts:
- 476
- Group:
- Members
- Member
- #2,205
- Joined:
- Jul 20, 2017
- Gender:
- Female
|
In Ornithischians a crural index consistent with cursorialism is seen only in some small ornithopods and some early Jurassic taxa ie. heterodontosaurids and Lesothosaurus. Herrerasaurids though not true theropods were of the carnosaur morphotype and therefore unexpectedly non-cursorial. Thyreophorans, pachycephalosaurids, ceratopsians, classic sauropodomorphs and therizinosaurs were non-cursorial even at small body sizes. As in mammals large taxa were relatively slow but not all taxa below a cut off point were cursorial: Parksosaurus and Masiakosaurus were about as built for running as giant ornithopods or the carnosaur guild.
What does this mean for the ecosystems where tyrannosaurs are preserved? It means apart from smaller theropods prey animals would not be built to run away and adult tyrannosaurs had no need for speed. (Incidentally none of even the small ornithopods in late Cretaceous North America were cursorial: their hindlimbs look like those of hadrosaurids and Iguanodon. I was very surprised to notice that of the "gazelles of the Mesozoic" so mislabelled by comparison to Hypsilophodon and Dryosaurus. But different locomotory tendencies within the smaller size ranges is exactly the observation of herbivorous, erect limbed mammals today. Thescelosaurus was plausibly semiaquatic and some of those North Ameican ornithopods were burrowers like oreodonts.)
Small tyrannosaur relatives for example Tanycolagreus, Guanlong, Dilong and Raptorex could be definitively cursorial. Yutyrannus was not markedly so and even Dryptosaurus was not especially built as a gracile persuit predator. In total Tyrannosauroidea was primitively cursorial with tendencies (not just once) to switch to ambush predation and gigantism unless the aforementioned cursors were not a grade of basal tyrannosauroids, as only Raptorex is a definite tyrannosauroid.
Edited by kusanagi, Aug 1 2017, 08:23 AM.
|
|
|
| |
|
dino-ken
|
Aug 7 2017, 05:12 PM
Post #22
|
- Posts:
- 1,618
- Group:
- Members
- Member
- #925
- Joined:
- Jan 6, 2013
- Gender:
- Male
- Nationality:
- United States
|
Well - any estimates regarding mass and speed of prehistoric animals is subject to debate. this is specially true with prehistoric animals which been extinct for more than 65 million years.
Truth is - If we could take a time machine back to Late Cretaceous - we would likely be seeing dinosaurs, pterosaurs, and other creatures of that era doing things which no paleonotogist would guess these creatures could do.
So the speculation that T.rex was too heavy to run - is just that - PURE speculation. A real adult T,rex would likely surprise many paleontologists at how fast it could actually move. Still no matter what you call it (a fast walk, a trot, a jog, or a sprint) - I do believe that T.rex was very capable of catching it's prey.
|
|
|
| |
|
Tartarus
|
Aug 7 2017, 07:49 PM
Post #23
|
- Posts:
- 1,774
- Group:
- Members
- Member
- #705
- Joined:
- Feb 1, 2012
- Gender:
- Male
- Nationality:
- Australian
|
I'm quite skeptical of the "T-rex couldn't run" claim. It is a claim that has been made many times before and seems to be based on the assumption that a multi-tonne animal should not be able to run simply because its "too heavy" to do so. Never mind numerous studies in theropod biomechanics that tell a very different story- namely that multi-tonne theropods, including T-rex, most certainly could run.
|
|
|
| |
|
LittleLazyLass
|
Aug 7 2017, 07:55 PM
Post #24
|
Proud quilt in a bag
- Posts:
- 8,633
- Group:
- Global Mods
- Member
- #1,463
- Joined:
- Jun 18, 2014
- Area of expertise:
- Alternate Universes
- Nationality:
- Sorry, but why do you want to know aboot my nationality, eh? Uh... sorry, that was rude of me. Sorry.
- Favorite Quote:
- "you know you're a nerd when you search Wookieepedia for porn"
- Also known as:
- You can call me Little; full list of old names found through profile.
- Gender:
- Trans Questioning (see link in sig; feminine pronouns)
|
...but this is based on a biomechanical study.
|
totally not British, b-baka!
You like me (Unlike) I don't even really like this song that much but the title is pretty relatable sometimes, I guess.
Me  Forum user Uncanny Gemstar drew what is supposed to be a me. Thanks! Spoiler: click to toggle As they walk in, they're greeted by a small, poorly kept pathway leading to a poorly constructed Japanese-style gate. Behind this, a small field made up of corn, rice, wheat, potatoes, among other plants is contrasted by large piles of books, as well as a few rather out of place looking laptops. Off in the corner, a small woman, with long, striped, and strikingly colorful socks, no shoes, unremarkable denim shorts, a large, fancy black coat, arm warmers, glasses, a tuque, and somewhat unkempt, mid-length blue-and-pink-streaked red hair, is rummaging through a trash bin, located behind a sign saying "employees only". She continues this for a while (walking behind a wall to change her outfit now and then), until one of her visitors coughs. Startled, she looks up, apologizes, and grabs a handful of textbooks and novels before daintily running off to join them. What, you want me to tell you what these mean? Predenterra The (Lost) Lost World The Standing World Read First Clarifications on my sex and genderSorry if I come off as rude, I don't put much thought into word choice sometimes. I'm also super prone to editing my posts, sometimes multiple times, in the minutes following posting. For the love of god, take my posts from my earlier days on the forum with a grain of salt. I was not particularly knowledgeable or mature back then. Some of them are so cringe-worthy I can't even bring myself to look at them. Words Maybe Great Words - Words To Spec By
-
It would have to be something extremely alien, pushing the limits of our imagination. But those are always my favorite kinds of life. ~~The Words of The Xenologist
- Words To Live By
-
Ignorance is never insulting if you're willing to learn, we're all ignorant about most things. ~~The Words of Lamna
- Words I Live By
-
Yeah, and even if you don't agree with creationists on that concept, that doesn't mean they can't be decent people. I have friends who are creationist (possibly even young earth) that I get along with fine in general life. I don't think they're right of course, but that doesn't make them intellectual degenerates. ~~The Words of forbidden3
Member Quotes - jman123
-
Ass-breathing fish-lizards? Sounds like a punk rock band
- Sheather
-
"Holy fucking shit a toilet paper roll! Our favorite thing!"
- Urufumarukai
-
Tyrannosaurus aquastronka
- Kamineigh
-
Myo, if you don't stop reading the YouTube comments...
- Lamna
-
Are you saying what I think you're saying?
Sheather bathes in cum?
- Cephylus
-
And last night I dreamed I was blowing up a Kindergarten with a grenade launcher for no particular reason...
- revin
-
Oh, and of course more people get killed by selfies than by sharks. Of course.
- Parasky
-
SHEEEEAAAAATTTTTTHHHHHHHHHEEEEEEEEERRRRRRRRR!!!!!!!!
- whachamacalit2
-
The smell of rotting flesh really kills my appetite, surprising, but the visual appearance of corpses makes me hungry. Is that weird?
- Ebervalius
-
I mean, let us say I'm a genderfluid blurflux demi-romantic woman who is sexually attracted to men, but only if they are Melanesian and have a voice like that of Nicholas Cage. Okay, so what?
- trex841
-
When I first saw that picture, I thought you were dissecting a condom.
- Mr Mysterio
-
All hail Robo-Stalin.
- Peashyjah
-
Seems like everything in this project is now dead.
- Stealth Rock
-
Seagulls are pretty much trees, right?
- Watcher
-
We all must finish chapters of our lives to go on to the next. Sometime this means leaving behind versions of ourselves that don't want to die.
- Yiqi15
-
For April fool's, we had to make an orgasm that resembled a human foot.
- Flisch
-
im the black market
- CaledonianWarrior96
-
He was a skater birb, she said tweet you later birb
- Most People at Some Point
-
Quotes - Some dude called plucas1 from Youtube comments
-
Funny, isn't it, that our world needs Clark Kent a lot more than Superman.
- Xenoblade Chronicles
-
Even though he is our creator, that does not afford him the right to take our lives on a whim. But that is the thinking of a homs. He is a god. Such morals cannot apply to gods. So you think we should just shut up and die?! If that is the fate decided by a god. You are mistaken if you think we will simply accept such a fate and wait to die. We'll never stop fighting. Not till the end. To Zanza, the outcome is the same. Thus your logic is flawed.
- Hades - Kid Icarus Uprising
-
When freaky aliens give you lemons, make freaky alien lemonade.
- Kid Icarus Uprising
-
But Souls are delicious. They're like bacon - they taste good on anything. But if you eat them, you completely remove them from existence! They can't move on or... or be reincarnated! Huh. I never really gave it much thought. Besides, what do you mean by reincarnation anyway? You know, being reborn as someone or something else. Which means different body, different memories, different experiences, yes? So isn't being reborn as "something else" the same as being "removed from existence"? I... I... eating souls isn't right! That depends on your definition of "right". All living things survive by eating other living things. So what? You're a god. You should be above all that! Gods are above living things, which doesn't necessarily mean we care about them.
- Some Dude on BBC Two
-
You are being shagged... by a flightless parrot.
Stuff
|
| |
|
Nyarlathotep
|
Aug 8 2017, 10:32 AM
Post #25
|
- Posts:
- 1,300
- Group:
- Members
- Member
- #1,358
- Joined:
- Mar 2, 2014
- Gender:
- Male
- Area of expertise:
- Future Evolution
- Nationality:
- English
- Gender:
- Redundant much redundant?
|
I think that just shows the contrast in different studies between the two. A 12.3m, 8.4 tonne animal like Sue would obviously not be the fastest animals on the planet, but they did have plenty of adaptions to counter this. And elephants, which lack many of the adaptions can run deceptively fast, so u don't see why it's impossible.
|
|
|
| |
|
IIGSY
|
Aug 8 2017, 12:30 PM
Post #26
|
A huntsman spider that wastes time on the internet because it has nothing better to do
- Posts:
- 3,758
- Group:
- Members
- Member
- #1,987
- Joined:
- Sep 11, 2016
- Gender:
- Male
- Area of expertise:
- Future Evolution
- Favorite Quote:
- Don't have one
- Also known as:
- Anomonys
- Gender:
- male
|
- Nyarlathotep
- Aug 8 2017, 10:32 AM
I think that just shows the contrast in different studies between the two. A 12.3m, 8.4 tonne animal like Sue would obviously not be the fastest animals on the planet, but they did have plenty of adaptions to counter this. And elephants, which lack many of the adaptions can run deceptively fast, so u don't see why it's impossible. Tyrannosaurus and elephants can't run, but they can walk fast. Running, by definition, requires both feet to be off the ground at some point.
|
Projects Punga: A terraformed world with no vertebrates Last one crawling: The last arthropod
ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)
Potential ideas- Swamp world: A world covered in lakes, with the largest being caspian sized. Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal. Tri-devonian: A devonian like ecosystem with holocene species on three different continents.
Quotes "Arthropod respiratory systems aren't really "inefficient", they're just better suited to their body size. It would be quite inefficient for a tiny creature that can easily get all the oxygen it needs through passive diffusion to have a respiratory system that wastes energy on muscles that pump air into sacs. (Hence why lungless salamanders, uniquely miniscule and hyperabundant tetrapods, have ditched their lungs in favor of breathing with their skin and buccal mucous membranes.) But large, active insects already use muscles to pump air in and out of their spiracles, and I don't see why their tracheae couldn't develop pseudo- lungs if other conditions pressured them to grow larger."-HangingTheif
"Considering the lifespans of modern non- insect arthropods (decade-old old millipedes, 50 year old tarantulas, 100+ year old lobsters) I wouldn't be surprised if Arthropleura had a lifespan exceeding that of a large testudine"-HangingTheif
"Humans have a tribal mindset and it's not alien for tribes to war on each other. I mean, look at the atrocities chimpanzee tribes do to each other. Most of people's groupings and big conflicts in history are directly or obliquely manifestations of this tribal mindset."-Sceynyos-yis
"He's the leader of the bunch You know his Coconut Gun is finally back to fire in spurts. His Coconut Gun Can make you smile If he shoots ya it's firing in spurts. His Coconut Gun Is bigger, faster, stronger too! He's the gun member of the Coconut Crew! HUH!
C.G.! Coconut Gun! C.G.! Co-Coconut Gun! Shoot yourself with a Coconut Gun! HUH!"-Kamineigh
"RIP, rest in Peytoia."-Little
"In Summary: Piss on Lovecraft's racist grave by making lewds of Cthulhu and Nyarlathotep.
Then eat arby's and embrace the void."-Kamineigh
"Dougal Dixon rule 34."-Sayornis
Phylogeny of the arthropods and some related groups
In honor of the greatest clade of all time
More pictures
Other cool things
All African countries can fit into Brazil
|
| |
|
Rodlox
|
Aug 8 2017, 02:33 PM
Post #27
|
- Posts:
- 3,109
- Group:
- Members
- Member
- #21
- Joined:
- Jun 28, 2008
|
- Insect Illuminati Get Shrekt
- Aug 8 2017, 12:30 PM
- Nyarlathotep
- Aug 8 2017, 10:32 AM
I think that just shows the contrast in different studies between the two. A 12.3m, 8.4 tonne animal like Sue would obviously not be the fastest animals on the planet, but they did have plenty of adaptions to counter this. And elephants, which lack many of the adaptions can run deceptively fast, so u don't see why it's impossible.
Tyrannosaurus and elephants can't run, but they can walk fast. Running, by definition, requires both feet to be off the ground at some point. if I'm being pursued by an angry/hungry multi-tonne animal, I neither know nor care how many feet are off the ground at any time.
|
.---------------------------------------------. Parts of the Cluster Worlds: "Marsupialless Australia" (what-if) & "Out on a Branch" (future evolution) & "The Earth under a still sun" (WIP)
|
| |
|
Tartarus
|
Aug 8 2017, 08:16 PM
Post #28
|
- Posts:
- 1,774
- Group:
- Members
- Member
- #705
- Joined:
- Feb 1, 2012
- Gender:
- Male
- Nationality:
- Australian
|
Apparently the study of T-rex supposedly not being able to run is Sellers et al, 2017, Investigating the running abilities of Tyrannosaurus rex using stress-constrained multibody dynamic analysis. The study has a number of problems with it that the various articles praising it seem to not notice (or conveniently choose to overlook?). For example, their model poses T-rex's legs in a columnar manner that is not quite how the legs would have actually been posed. The anterior torso also seems to be a bit deeper than it should be. They also don't seem to take into account factors such as soft tissue structures reducing stress on the limb bones and reduction in gait width (one foot going in front of the other when moving). Examples like these throw doubt on the validity of the study's conclusions.
I find it a bit annoying how often pop science articles will refer to some new study or discovery or something as totally changing what we thought we knew about something without stopping for a second to consider things like "hang on, how reliable is this? Perhaps we should look into it a bit deeper before claiming it as revolutionary". Revolutionary new ideas can and do happen from time to time but we must always be cautious not to be to quick to jump onto bandwagons. The idea that T-rex couldn't run is not a new one. It is an idea that has popped up time and time again and every time it never quite manages to argue its case all that well.
|
|
|
| |
|
IIGSY
|
Aug 8 2017, 08:25 PM
Post #29
|
A huntsman spider that wastes time on the internet because it has nothing better to do
- Posts:
- 3,758
- Group:
- Members
- Member
- #1,987
- Joined:
- Sep 11, 2016
- Gender:
- Male
- Area of expertise:
- Future Evolution
- Favorite Quote:
- Don't have one
- Also known as:
- Anomonys
- Gender:
- male
|
- Rodlox
- Aug 8 2017, 02:33 PM
- Insect Illuminati Get Shrekt
- Aug 8 2017, 12:30 PM
- Nyarlathotep
- Aug 8 2017, 10:32 AM
I think that just shows the contrast in different studies between the two. A 12.3m, 8.4 tonne animal like Sue would obviously not be the fastest animals on the planet, but they did have plenty of adaptions to counter this. And elephants, which lack many of the adaptions can run deceptively fast, so u don't see why it's impossible.
Tyrannosaurus and elephants can't run, but they can walk fast. Running, by definition, requires both feet to be off the ground at some point.
if I'm being pursued by an angry/hungry multi-tonne animal, I neither know nor care how many feet are off the ground at any time. That doesn't prove anything. They can move fast, but they technically can't run
|
Projects Punga: A terraformed world with no vertebrates Last one crawling: The last arthropod
ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)
Potential ideas- Swamp world: A world covered in lakes, with the largest being caspian sized. Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal. Tri-devonian: A devonian like ecosystem with holocene species on three different continents.
Quotes "Arthropod respiratory systems aren't really "inefficient", they're just better suited to their body size. It would be quite inefficient for a tiny creature that can easily get all the oxygen it needs through passive diffusion to have a respiratory system that wastes energy on muscles that pump air into sacs. (Hence why lungless salamanders, uniquely miniscule and hyperabundant tetrapods, have ditched their lungs in favor of breathing with their skin and buccal mucous membranes.) But large, active insects already use muscles to pump air in and out of their spiracles, and I don't see why their tracheae couldn't develop pseudo- lungs if other conditions pressured them to grow larger."-HangingTheif
"Considering the lifespans of modern non- insect arthropods (decade-old old millipedes, 50 year old tarantulas, 100+ year old lobsters) I wouldn't be surprised if Arthropleura had a lifespan exceeding that of a large testudine"-HangingTheif
"Humans have a tribal mindset and it's not alien for tribes to war on each other. I mean, look at the atrocities chimpanzee tribes do to each other. Most of people's groupings and big conflicts in history are directly or obliquely manifestations of this tribal mindset."-Sceynyos-yis
"He's the leader of the bunch You know his Coconut Gun is finally back to fire in spurts. His Coconut Gun Can make you smile If he shoots ya it's firing in spurts. His Coconut Gun Is bigger, faster, stronger too! He's the gun member of the Coconut Crew! HUH!
C.G.! Coconut Gun! C.G.! Co-Coconut Gun! Shoot yourself with a Coconut Gun! HUH!"-Kamineigh
"RIP, rest in Peytoia."-Little
"In Summary: Piss on Lovecraft's racist grave by making lewds of Cthulhu and Nyarlathotep.
Then eat arby's and embrace the void."-Kamineigh
"Dougal Dixon rule 34."-Sayornis
Phylogeny of the arthropods and some related groups
In honor of the greatest clade of all time
More pictures
Other cool things
All African countries can fit into Brazil
|
| |
|
Rodlox
|
Aug 8 2017, 08:35 PM
Post #30
|
- Posts:
- 3,109
- Group:
- Members
- Member
- #21
- Joined:
- Jun 28, 2008
|
- Insect Illuminati Get Shrekt
- Aug 8 2017, 08:25 PM
- Rodlox
- Aug 8 2017, 02:33 PM
- Insect Illuminati Get Shrekt
- Aug 8 2017, 12:30 PM
- Nyarlathotep
- Aug 8 2017, 10:32 AM
I think that just shows the contrast in different studies between the two. A 12.3m, 8.4 tonne animal like Sue would obviously not be the fastest animals on the planet, but they did have plenty of adaptions to counter this. And elephants, which lack many of the adaptions can run deceptively fast, so u don't see why it's impossible.
Tyrannosaurus and elephants can't run, but they can walk fast. Running, by definition, requires both feet to be off the ground at some point.
if I'm being pursued by an angry/hungry multi-tonne animal, I neither know nor care how many feet are off the ground at any time.
That doesn't prove anything. They can move fast, but they technically can't run so? if I'm being chased, I'm not going to yell "HELP, THERE'S A T.REX WALKING BEHIND ME!"
no, I'm going to yell "HELP, THERE'S A T.REX RUNNING AFTER ME!"
|
.---------------------------------------------. Parts of the Cluster Worlds: "Marsupialless Australia" (what-if) & "Out on a Branch" (future evolution) & "The Earth under a still sun" (WIP)
|
| |
| 1 user reading this topic (1 Guest and 0 Anonymous)
|