What takes over after we wipe out everything


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LazarX wrote:
We have no reason to believe that the development of sentient life on this planet was nothing more than a random result. The first Human speices appeared about 2 million years ago. The Reptiles rules this planet for far longer without any evidence of developing sentience.

What evidence would you expect to have found of sentient reptilian life? Especially after 70 million years or so?

Bear in mind that humans have been around more or less in their present form for about 200,000 years, and so were presumptively sapient. We've only been able to effect large-scale changes on the Earth, changes that are likely to be noticed by future paleontologists, for about 2000 years.

A tribe of sentient velociraptors that flourished for 100,000 years and got to the point of mud huts and domesticated pteranodons, but not to concrete and steel, would not have left any traces we could find.


Also... dinosaurs were not reptiles. :)


Orfamay Quest wrote:


A tribe of sentient velociraptors that flourished for 100,000 years and got to the point of mud huts and domesticated pteranodons, but not to concrete and steel, would not have left any traces we could find.

Except maybe a radius bone that would allow for a rotating wrist. Tie your thumb to the side of your hand, tie both elbows to your side, turn your hands downward and, without rotating your wrists at all, build a mud hut.

Attempt falconry thus constrained as well.

Those hands of velociraptor's, those forearms, are entirely non conducive to tool use.

Form follows function.


Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.


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Poor human hand. So often taken for granted when the human brain gets all the applause.

And such a rare thing as well.


Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammals are defined by having mammary glands. Almost all of them bear live young.

Reptiles are those that do not have mammary glands. They lay eggs. By that definition, sure.

But reptiles today also have a rather specific build, with their legs out from the body rather than under it. They are cold-blooded. They do not have feathers or fur.

Most seem to agree that dinosaurs were the progenitors of modern day birds. Birds lay eggs, they have feathers, they are warm-blooded, they have legs under their body. Dinos seem to have been warm-blooded and did have their legs under their bodies. Some had feathers.

Seems to me the reptile definition is pretty much a way of saying "not mammal". Still, if birds are descended from dinosaurs, it's of little usefulness, and perhaps it's better to just call them dinosaurs.

Still, was fun looking through forums of paleontology for a little while, finding the most amazing grar there too. =)


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Spanky the Leprechaun wrote:
Orfamay Quest wrote:


A tribe of sentient velociraptors that flourished for 100,000 years and got to the point of mud huts and domesticated pteranodons, but not to concrete and steel, would not have left any traces we could find.

Except maybe a radius bone that would allow for a rotating wrist.

You're making the assumption that we have such a fossil to make that determination. There are two known species of velociraptor (Velociraptor mongoliensis, Velociraptor osmolskae).

To put thing in perspective, there are about 10-12 known species in genus Homo. One of these species (H. floresiensis) is known from nine individual fossils, including a single cranium. These fossils are from fewer than 50,000 years ago. We have, I believe, seven individuals of H. antecessor, from about one million years go.

Over 70 million years, how many species of Velociraptor have come and gone for which we have no evidence whatsoever, either because we haven't found the six individuals, or because the six individuals fossilized were later destroyed?


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Sissyl wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammals are defined by having mammary glands. Almost all of them bear live young.

Reptiles are those that do not have mammary glands. They lay eggs. By that definition, sure.

But reptiles today also have a rather specific build, with their legs out from the body rather than under it. They are cold-blooded. They do not have feathers or fur.

Most seem to agree that dinosaurs were the progenitors of modern day birds. Birds lay eggs, they have feathers, they are warm-blooded, they have legs under their body. Dinos seem to have been warm-blooded and did have their legs under their bodies. Some had feathers.

Seems to me the reptile definition is pretty much a way of saying "not mammal". Still, if birds are descended from dinosaurs, it's of little usefulness, and perhaps it's better to just call them dinosaurs.

Still, was fun looking through forums of paleontology for a little while, finding the most amazing grar there too. =)

The "reptile" designation is not a particularly good class, because it's essentially "any terrestrial vertebrate that's not a mammal, bird, or amphibian." Crocodilians, for example, are more closely related to birds than to any other living reptile order.

If it were up to me, I'd probably make the amniote classes (that's the non-amphibian terrestrial vertebrate classes) the mammal, bird, crocodile, turtle, reptile (in this case, lizards, snakes, and tuataras).

So, are dinosaurs reptiles? Well... they're from the crocodile-bird branch. So... I'm going to say that dinosaurs were dinosaurs.


Orfamay Quest wrote:
Spanky the Leprechaun wrote:
Orfamay Quest wrote:


A tribe of sentient velociraptors that flourished for 100,000 years and got to the point of mud huts and domesticated pteranodons, but not to concrete and steel, would not have left any traces we could find.

Except maybe a radius bone that would allow for a rotating wrist.

You're making the assumption that we have such a fossil to make that determination. There are two known species of velociraptor (Velociraptor mongoliensis, Velociraptor osmolskae).

Which is precisely what LazarX meant when he said " The Reptiles rules this planet for far longer without any evidence of developing sentience."

To which you replied "What evidence would you expect to have found of sentient reptilian life? Especially after 70 million years or so? "

I replied with the type of evidence I would expect to find. I actually thought everything LazarX said was such a no-brainer that I wondered at why he was even posting it, but........


Spanky the Leprechaun wrote:


Which is precisely what LazarX meant when he said " The Reptiles rules this planet for far longer without any evidence of developing sentience."

To which you replied "What evidence would you expect to have found of sentient reptilian life? Especially after 70 million years or so? "

I replied with the type of evidence I would expect to find.

Your "expectation" is unreasonable. You should "expect" to find exactly nothing for the vast majority of species -- and be astonished if you did.


Wrong John Silver wrote:


So, are dinosaurs reptiles? Well... they're from the crocodile-bird branch. So... I'm going to say that dinosaurs were dinosaurs.

I agree.....dinosaurs were dinosaurs. Of the superorder dinosauria. Of the class reptilia.


Orfamay Quest wrote:
Spanky the Leprechaun wrote:


Which is precisely what LazarX meant when he said " The Reptiles rules this planet for far longer without any evidence of developing sentience."

To which you replied "What evidence would you expect to have found of sentient reptilian life? Especially after 70 million years or so? "

I replied with the type of evidence I would expect to find.

Your "expectation" is unreasonable. You should "expect" to find exactly nothing for the vast majority of species -- and be astonished if you did.

Precisely. Which is why I wonder why you asked him what he would "expect to find" when his initial supposition was a no brainer.


Sissyl wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammals are defined by having mammary glands. Almost all of them bear live young.

Reptiles are those that do not have mammary glands. They lay eggs. By that definition, sure.

But reptiles today also have a rather specific build, with their legs out from the body rather than under it. They are cold-blooded. They do not have feathers or fur.

Most seem to agree that dinosaurs were the progenitors of modern day birds. Birds lay eggs, they have feathers, they are warm-blooded, they have legs under their body. Dinos seem to have been warm-blooded and did have their legs under their bodies. Some had feathers.

Seems to me the reptile definition is pretty much a way of saying "not mammal". Still, if birds are descended from dinosaurs, it's of little usefulness, and perhaps it's better to just call them dinosaurs.

Still, was fun looking through forums of paleontology for a little while, finding the most amazing grar there too. =)

I agree.....dinosaurs were dinosaurs. Of the superorder dinosauria. Of the class reptilia.

You initially said "dinosaurs were not reptiles," which is not a true statement. Dinosaurs were indeed reptiles.


Spanky the Leprechaun wrote:

Poor human hand. So often taken for granted when the human brain gets all the applause.

And such a rare thing as well.

There's a semi-controversy on the left right now about the publishers of the Collected Works of Marx and Engels make the Marxist Internet Archives to take down all of the Marx and Engels.

Which is a long way of saying if one ever had the urge to read Fred's The Part Played by Labour in the Transition from Ape to Man for free on the internet, your chance may be ending.

I remember reading a whole Stephen Jay Gould essay about it in Natural History back in the day.

Five fingers form a fist!
Vive le Galt!


Starfinder Superscriber

Octopus is my favorite.


Comrade Anklebiter wrote:
Spanky the Leprechaun wrote:

Poor human hand. So often taken for granted when the human brain gets all the applause.

And such a rare thing as well.

There's a semi-controversy on the left right now about the publishers of the Collected Works of Marx and Engels make the Marxist Internet Archives to take down all of the Marx and Engels.

Which is a long way of saying if one ever had the urge to read Fred's The Part Played by Labour in the Transition from Ape to Man for free on the internet, your chance may be ending.

I remember reading a whole Stephen Jay Gould essay about it in Natural History back in the day.

Five fingers form a fist!
Vive le Galt!

None of this happens without a proper third metacarpal styloid process, much less a thumb and a rotating wrist.


Spanky the Leprechaun wrote:
Sissyl wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammals are defined by having mammary glands. Almost all of them bear live young.

Reptiles are those that do not have mammary glands. They lay eggs. By that definition, sure.

But reptiles today also have a rather specific build, with their legs out from the body rather than under it. They are cold-blooded. They do not have feathers or fur.

Most seem to agree that dinosaurs were the progenitors of modern day birds. Birds lay eggs, they have feathers, they are warm-blooded, they have legs under their body. Dinos seem to have been warm-blooded and did have their legs under their bodies. Some had feathers.

Seems to me the reptile definition is pretty much a way of saying "not mammal". Still, if birds are descended from dinosaurs, it's of little usefulness, and perhaps it's better to just call them dinosaurs.

Still, was fun looking through forums of paleontology for a little while, finding the most amazing grar there too. =)

I agree.....dinosaurs were dinosaurs. Of the superorder dinosauria. Of the class reptilia.

You initially said "dinosaurs were not reptiles," which is not a true statement. Dinosaurs were indeed reptiles.

But according to the classic taxonomy, reptiles, amphibians, birds and mammals are the terrestrial animals. And, according to this system, every descendant of one organism should belong to the same class, right? Meaning birds, even if descended from dinosaurs, should not be their own class.

My point is that it's a point of contention even today. Biology is shifting from classic taxonomy to DNA-based taxonomy. Reptiles is considered, as was stated, a pretty bad class.


Sissyl wrote:


But according to the classic taxonomy, reptiles, amphibians, birds and mammals are the terrestrial animals.

Yes.

Quote:
And, according to this system, every descendant of one organism should belong to the same class, right?

No. Classic taxonomy has never been cladistic. The cladistic approach only originated in the early 20th century. "Classic" taxonomy is more accurately termed "phenetic taxonomy" and dates back to the 18th century.

Bear in mind that Carl Linnaeus didn't even have access to the theory of evolution or the idea that disparate species were related to each other when he created the classic taxa. While Linnaeus didn't use Reptilia, he laid down four of the classic vertebrate classes: Pisces, Amphibia, Aves, and Mammalia. Today we know that neither Pisces nor (historical) Amphibia are monophylitic, and we separate Reptilia another (paraphylitic) class.

Which is a very long and detailed way of saying "no."

Liberty's Edge

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Comrade Anklebiter wrote:
Spanky the Leprechaun wrote:

Poor human hand. So often taken for granted when the human brain gets all the applause.

And such a rare thing as well.

There's a semi-controversy on the left right now about the publishers of the Collected Works of Marx and Engels make the Marxist Internet Archives to take down all of the Marx and Engels.

Which is a long way of saying if one ever had the urge to read Fred's The Part Played by Labour in the Transition from Ape to Man for free on the internet, your chance may be ending.

I remember reading a whole Stephen Jay Gould essay about it in Natural History back in the day.

Five fingers form a fist!
Vive le Galt!

Wait, the seminal works of the two leading Socialist thinkers' aren't in the public domain to be used freely by all? Is this what you're saying?

If that is the case, the irony is so delicious I think I'll pour it on my ice cream.


Birds are reptiles according to phylogenetics. More specifically, birds are descendants of diapsids.

Crocodiles are more closely related to birds than they are to turtles (or indeed, most other types of lizards).


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If the dinosaurs had achieved sentience, civilization, and the atomic bomb it would explain that fine layer of iridium in the kt boundary...


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BigNorseWolf wrote:

If the dinosaurs had achieved sentience, civilization, and the atomic bomb it would explain that fine layer of iridium in the kt boundary...

Nah, they just summoned Earthfall.

Liberty's Edge

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S.M. Stirling wrote:
"Rats and cockroaches had multiplied beyond belief, then eaten each other and died in a ghastly parody of humanity's fate


Sissyl wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammals are defined by having mammary glands. Almost all of them bear live young.

Reptiles are those that do not have mammary glands. They lay eggs. By that definition, sure.

But reptiles today also have a rather specific build, with their legs out from the body rather than under it. They are cold-blooded. They do not have feathers or fur.

Most seem to agree that dinosaurs were the progenitors of modern day birds. Birds lay eggs, they have feathers, they are warm-blooded, they have legs under their body. Dinos seem to have been warm-blooded and did have their legs under their bodies. Some had feathers.

Seems to me the reptile definition is pretty much a way of saying "not mammal". Still, if birds are descended from dinosaurs, it's of little usefulness, and perhaps it's better to just call them dinosaurs.

Still, was fun looking through forums of paleontology for a little while, finding the most amazing grar there too. =)

I agree.....dinosaurs were dinosaurs. Of the superorder dinosauria. Of the class reptilia.

You initially said "dinosaurs were not reptiles," which is not a true statement. Dinosaurs were indeed reptiles.

But according to the classic taxonomy, reptiles, amphibians, birds and mammals are the terrestrial animals. And, according to this system, every descendant of one organism should belong to the same class, right? Meaning birds, even if descended from dinosaurs, should not be their own class.

My point is that it's a point of contention even today. Biology is shifting from classic taxonomy to DNA-based taxonomy. Reptiles is considered, as was stated, a pretty bad class.

And, dinosaurs were, in all actuality, reptiles. So your statement in response to LazarX, being "dinosaurs were not reptiles," is false.


Soooo... you're just stating again that they are, without any sort of argument for it? Thank you for adding to the echo chamber here, but the others at least tried to argue for their point of view.


I know who I'm believing.


Sissyl wrote:
Soooo... you're just stating again that they are, without any sort of argument for it? Thank you for adding to the echo chamber here, but the others at least tried to argue for their point of view.

You said they weren't reptiles. They were.

There's nothing to argue.


Wrong John Silver wrote:
I know who I'm believing.

would you believe......Encyclopedia Britannica?

First sentence.


The big problem is when do birds and mammals split from reptiles? And what defines that split?

In the broadest definition mammals and birds are reptiles. They come from the reptile side of the amphibian/reptile split. So when does the first reptile become a bird or a mammal, and what defines the split?


Vod Canockers wrote:

The big problem is when do birds and mammals split from reptiles? And what defines that split?

In the broadest definition mammals and birds are reptiles. They come from the reptile side of the amphibian/reptile split. So when does the first reptile become a bird or a mammal, and what defines the split?

They're all "amniotes."


Spanky the Leprechaun wrote:
Vod Canockers wrote:

The big problem is when do birds and mammals split from reptiles? And what defines that split?

In the broadest definition mammals and birds are reptiles. They come from the reptile side of the amphibian/reptile split. So when does the first reptile become a bird or a mammal, and what defines the split?

They're all "amniotes."

You got your synapsids, and then you got your sauropsids.


Spanky the Leprechaun wrote:
Wrong John Silver wrote:
I know who I'm believing.

would you believe......Encyclopedia Britannica?

First sentence.

If you want to go there, how about the University of Bristol. Class of Reptiles

Last listing under the 'Class Synapsida.'


3 CLASSIFICATION OF THE REPTILES

Series Amniota

Class Synapsida

*Order Pelycosauria

Family Eothyrididae

Family Caseidae

Family Varanopseidae

Family Ophiacodontidae

Family Edaphosauridae

Family Sphenacodontidae

Order Therapsida

†Suborder Biarmosuchia

†Suborder Dinocephalia

†Suborder Dicynodontia

†Suborder Gorgonopsia

Suborder Cynodontia

†Family Procynosuchidae

†Family Galesauridae

†Family Cynognathidae

†Family Diademodontidae

†Family Chiniquodontidae

†Family Tritylodontidae

†Family Tritheledontidae

Class Mammalia (see below)

Class Sauropsida

Subclass Anapsida

†Family Mesosauridae

†Family Millerettidae

†Family Bolosauridae

†Family Procolophonidae

†Family Pareiasauridae

Order Testudines (Chelonia)

†Family Proganochelyidae

†Family Australochelidae

Suborder Pleurodira

Suborder Cryptodira

Superfamily Baenoidea

†Family Meiolaniidae

Superfamily Chelonioidea

Superfamily Trionychoidea

Superfamily Testudinoidea

†Family Captorhinidae

†*Family Protorothyrididae

Subclass Diapsida

†Order Araeoscelidia

†Family Weigeltisauridae

†Order Younginiformes

†Infraclass Ichthyosauria sedis mutabilis

Infraclass Lepidosauromorpha

†Superorder Sauropterygia

Order Placodontia

Order Nothosauroidea

Suborder Pachypleurosauria

Suborder Nothosauria

Order Plesiosauria

Suborder Plesiosauroidea

Family Cryptoclididae

Family Cimoliasauridae

Family Polycotylidae

Family Elasmosauridae

Suborder Pliosauroidea

Family Rhomaleosauridae

Family Pliosauridae

Superorder Lepidosauria

Order Sphenodontida

Family Sphenodontidae

†Family Pleurosauridae

Order Squamata

*Suborder Lacertilia (Sauria)

Infraorder Iguania

Infraorder Gekkota

Infraorder Amphisbaenia

Infraorder Anguimorpha

Infraorder Scincomorpha

Suborder Serpentes (Ophidia)

Infraclass Archosauromorpha

†Family Trilophosauridae

†Family Rhynchosauridae

†Order Prolacertiformes

Division Archosauria

†Family Proterosuchidae

†Family Erythrosuchidae

†Family Euparkeriidae

Subdivision Crurotarsi

†Family Phytosauridae

†Family Ornithosuchidae sedis mutabilis

†Family Stagonolepididae sedis mutabilis

†Family Rauisuchidae sedis mutabilis

†Family Poposauridae sedis mutabilis

Superorder Crocodylomorpha

†Family Saltoposuchidae

†Family Sphenosuchidae

Order Crocodylia

†Family Protosuchidae

Division Mesoeucrocodylia

†Family Teleosauridae

†Family Metriorhynchidae

Subdivision Metasuchia

†Family Notosuchidae

†Family Sebecidae

Infradivision Neosuchia

†Family Goniopholididae

†Family Dyrosauridae

Suborder Eusuchia

Family Gavialidae

Family Crocodylidae

Family Alligatoridae

Subdivision Avemetatarsalia

†Scleromochlus

Infradivision Ornithodira

†Order Pterosauria

*Suborder Rhamphorhynchoidea

Suborder Pterodactyloidea

†Lagerpeton

†Marasuchus

Superorder Dinosauria

Order Saurischia

†Family Herrerasauridae

Suborder Theropoda

†Infraorder Coelophysoidea

†Infraorder Ceratosauria

Family Ceratosauridae

Family Abelisauridae

Infraorder Tetanurae

†Division Carnosauria

Subdivision Spinosauroidea

Family Megalosauridae

Family Spinosauridae

Subdivision Allosauroidea

Family Allosauridae

Family Carcharodontosauridae

Division Coelurosauria

†Family Coeluridae

Subdivision Maniraptoriformes

†Family Tyrannosauridae

†Family Ornithomimidae

Infradivision Maniraptora

†Family Alvarezsauridae

†Family Therizinosauridae

†Cohort Deinonychosauria

Family Dromaeosauridae

Family Troodontidae

Class Aves (see below)

†Suborder Sauropodomorpha

Thecodontosaurus

Family Plateosauridae

Riojasaurus

Family Massospondylidae

Infraorder Sauropoda

Family Vulcanodontidae

Family Omeisauridae

Division Neosauropoda

Family Cetiosauridae

Family Diplodocidae

Subdivision Macronaria

Family Camarasauridae

Infradivision Titanosauriformes

Family Brachiosauridae

Cohort Somphospondyli

Family Euhelopodidae

Family Titanosauridae

†Order Ornithischia

Family Pisanosauridae

Family Fabrosauridae

Suborder Thyreophora

Family Scelidosauridae

Infraorder Stegosauria

Infraorder Ankylosauria

Family Nodosauridae

Family Ankylosauridae

Suborder Cerapoda

Infraorder Pachycephalosauria

Infraorder Ceratopsia

Family Psittacosauridae

Family Protoceratopsidae

Family Ceratopsidae

Infraorder Ornithopoda

Family Heterodontosauridae

Family Hypsilophodontidae

Family Iguanodontidae

Family Hadrosauridae


Seems pretty cut and dry to me.


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imagines some thick cut dinosaur bacon


Spanky the Leprechaun wrote:
None of this happens without a proper third metacarpal styloid process, much less a thumb and a rotating wrist.

That's one way of looking at it. Another is that viewing sentience and dexterity exclusively as what we as humans have is a bit restrictive. Given time, evolutionary pressures and a good amount of random chance, who knows what could be possible? The pentadactyl limb is all well and good, but there have been alternatives in the past and might be again.

Opposable thumbs in an of themselves do not imply tool use or design. Chimpanzees have opposable thumbs (though to a lesser extent than humans) and opposable great toes as well. Yet routine and complex tool use is relatively uncommon in chimpanzees, generally limited to family groups who teach it from one generation to another. Culture, in the sense of the ability to learn and teach the next generation, is a truly interesting innovation and one that survives poorly in the fossil record.


Corvino wrote:
Spanky the Leprechaun wrote:
None of this happens without a proper third metacarpal styloid process, much less a thumb and a rotating wrist.

That's one way of looking at it. Another is that viewing sentience and dexterity exclusively as what we as humans have is a bit restrictive. Given time, evolutionary pressures and a good amount of random chance, who knows what could be possible? The pentadactyl limb is all well and good, but there have been alternatives in the past and might be again.

Opposable thumbs in an of themselves do not imply tool use or design. Chimpanzees have opposable thumbs (though to a lesser extent than humans) and opposable great toes as well. Yet routine and complex tool use is relatively uncommon in chimpanzees, generally limited to family groups who teach it from one generation to another. Culture, in the sense of the ability to learn and teach the next generation, is a truly interesting innovation and one that survives poorly in the fossil record.

Chimpanzees don't have a third metacarpal styloid process.

Which is why I kinda didn't exactly get into the "true/untroe opposable thumb" spiel.

Velociraptors kinda had a garden claw at the end of their forelimbs. Not too useful when making mud huts or practicing pterodactyl falconry.

The Exchange

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Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammal-reptile proto-organisms?


yellowdingo wrote:
Spanky the Leprechaun wrote:
Sissyl wrote:
Also... dinosaurs were not reptiles. :)

They were reptiles.

Mammal-reptile proto-organisms?

you better just get in your vw and drive, mate!


houstonderek wrote:
Wait, the seminal works of the two leading Socialist thinkers' aren't in the public domain to be used freely by all? Is this what you're saying?

Or so the headlines have led me to believe. Seems kinda weird to me, too, but I assume they've got copyrights on specific translations or something.


On May Day, no less.

"Corey and I both, by coincidence, were availing ourselves of radically under-priced materials from the enemy’s publishing apparatus. He’d received an order containing dirt-cheap copies of Bastiat from the Liberty Fund, while a day earlier I had downloaded free digital editions of the major Austrian School books on theory of value and the socialist-calculation debate from the Mises Institute website. There’s more to neoliberal hegemony than loss-leader pricing, but as ideological combatants those people know what they’re doing."


Vod Canockers wrote:
Spanky the Leprechaun wrote:
Wrong John Silver wrote:
I know who I'm believing.

would you believe......Encyclopedia Britannica?

First sentence.

If you want to go there, how about the University of Bristol. Class of Reptiles

Last listing under the 'Class Synapsida.'

Sooo... every mammal is a reptile, and every reptile is an amphibian?


Sissyl wrote:

[

Sooo... every mammal is a reptile, and every reptile is an amphibian?

No, because they went ahead and split off reptiles at a rather arbitrary point so that that wouldn't happen if you were using a monophylic system.


BigNorseWolf wrote:
Sissyl wrote:

[

Sooo... every mammal is a reptile, and every reptile is an amphibian?

No, because they went ahead and split off reptiles at a rather arbitrary point so that that wouldn't happen if you were using a monophylic system.

Good for them. =)


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Vod Canockers wrote:
Spanky the Leprechaun wrote:
Wrong John Silver wrote:
I know who I'm believing.

would you believe......Encyclopedia Britannica?

First sentence.

If you want to go there, how about the University of Bristol. Class of Reptiles

Last listing under the 'Class Synapsida.'

Why not push it further back and just classify everything as a bacteria?


1 person marked this as a favorite.
Spanky the Leprechaun wrote:

Chimpanzees don't have a third metacarpal styloid process.

Which is why I kinda didn't exactly get into the "true/untroe opposable thumb" spiel.

Velociraptors kinda had a garden claw at the end of their forelimbs. Not too useful when making mud huts or practicing pterodactyl falconry.

You're kind of missing the point I was making. The way that human beings evolved towards tool use and sentience is not the only way it could be possible. Just because things are not human-like doesn't mean that these things would impossible for them. Intelligence and culture often allow workarounds to compensate for anatomy, they definitely do for humans.

The Exchange

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Kryzbyn wrote:
Dropbears.

Less trees means more drop bears in built up areas...dropping from streetlights, rooftops, bridges, and political careers.

Scarab Sages

Corvino wrote:
You're kind of missing the point I was making. The way that human beings evolved towards tool use and sentience is not the only way it could be possible. Just because things are not human-like doesn't mean that these things would impossible for them. Intelligence and culture often allow workarounds to compensate for anatomy, they definitely do for humans.

That's why octopi feature heavily on people's lists for 'next race to inherit the Earth'.

They don't have opposable thumbs, but they have multiple limbs, each of which is far more flexible than a human arm, and covered in multiple suckers.

Learning to hold complex tools should come far more easily to them, than to other potential contenders.

The question then becomes, what would an octopus want to build?
Do they need to build anything?


Another limiting factor for aquatic creatures is the difficulty using fire underwater. A huge number of technological innovations were made possible to humans by fires, from smelting metals to the steam engine. Even now we get most of our electricity and transportation power from burning stuff. Unless they were able to sidestep this using other chemical reactions or environmental factors like geothermal energy this would be a fairly hard barrier to progress.


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Snorter wrote:


The question then becomes, what would an octopus want to build?
Do they need to build anything?

They build shelters.

Presumably when these kind of shelters are no longer sufficient they will have evolutionary incentive to build more complex and elaborate shelters, perhaps tunneling them out of rock. They also mimic other animals so they might want to build costumes.

Given sufficient time, I could also see them building amphibious shelters -- basically artificial tide pools to give them access to land (and land-resources). This would also (pace Corvino) allow them access to develop fire-based technology.

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