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  #61 (permalink)  
Old 07-November-2007, 05:09 PM
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BBP, you must be a thread paleontologist, digging up the dead bones of the past!
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  #62 (permalink)  
Old 07-November-2007, 06:11 PM
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Originally Posted by Noclevername View Post
BBP, you must be a thread paleontologist, digging up the dead bones of the past!
Well, he started it, so maybe he has the right. Besides, this is an interesting thread and it's been two years so there are a lot of new folks here. I'll have to look back thru and see if anyone thinks the dinosaurs could have evolved similar intelligence and technology as humans . . .
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  #63 (permalink)  
Old 07-November-2007, 06:14 PM
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Depends entirely on what path of evolution they took. 65 MY is a long time, dinosaurs were an extremely varied group living all over the world, and changing conditions and random mutations have a lot of room to produce alterations, so anything's possible.
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  #64 (permalink)  
Old 07-November-2007, 06:20 PM
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Depends entirely on what path of evolution they took. 65 MY is a long time, dinosaurs were an extremely varied group living all over the world, and changing conditions and random mutations have a lot of room to produce alterations, so anything's possible.
The Alvarez Theory states that the Yucatan asteroid/comet wiped out the dinosaurs and that we may owe our existence to that event but I still can't help but feel empathy/sorrow towards the dinosaurs. I know it's illogical.
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Old 07-November-2007, 06:20 PM
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maybe traces of their civilization are lying at the bottom of the ocean......
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  #66 (permalink)  
Old 07-November-2007, 06:24 PM
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Originally Posted by banquo's_bumble_puppy View Post
maybe traces of their civilization are lying at the bottom of the ocean......
I'm not sure what percentage of the ocean floor has subducted under continental plates in the last 65 MY but it's enough that the Alvarez team (and those afterwards) were worried that the crater they were looking for might be forever obliterated.
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  #67 (permalink)  
Old 07-November-2007, 06:26 PM
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Originally Posted by Tucson_Tim View Post
The Alvarez Theory states that the Yucatan asteroid/comet wiped out the dinosaurs and that we may owe our existence to that event but I still can't help but feel empathy/sorrow towards the dinosaurs. I know it's illogical.
I know the feeling.
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  #68 (permalink)  
Old 07-November-2007, 06:33 PM
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I know the feeling.
I know evolution is not fair - in fact it's downright brutal and chance is involved - but it still bothers me. I guess I shouldn't feel too sorry for the dinosaurs - the same thing could happen to us next week.
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Old 07-November-2007, 08:26 PM
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I know evolution is not fair - in fact it's downright brutal and chance is involved - but it still bothers me. I guess I shouldn't feel too sorry for the dinosaurs - the same thing could happen to us next week.
There is also the point of...
The past is past
about 65,000,000 years passed
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  #70 (permalink)  
Old 07-November-2007, 10:52 PM
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Okay then, I won't mention the dinosaurs' extinction.
We will now use Krypton as the model for catastrophes we must avoid by moving off-world.
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  #71 (permalink)  
Old 08-November-2007, 02:27 AM
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What are we defining intelligence as? What kind of a 'civilization' are we looking at?

with regards
Well I've been away from this forum for several months and it's great to some back & see a fun thread.

It seems everyone is defining civilization as making Stuff. I think that's a narrow definition. Someone mentioned finding a stone knife next to a dino fossil and that's an example of the problem. Dinos obviously have claws and don't need stone knives. The only reason humans need Stuff is because, as someone else noted, we have almost no physical attributes to help us survive.

So, other animals don't have cars & guns so we call them stupid. However scientists have found 'languages' in lots of other animals including prairie dogs. Animals have all kinds of ways of communicating with each other and detecting information. For all we know there are other species on this earth, in the past or on other planets, that have sophisticated communication abilities we can't even imagine. None of this would show up in the fossil record and we'd never have a clue that an advanced civilization existed.

I'm especially thinking about this in connection with all those planets we're finding that wouldn't support fire, combustion, ironmongering and all those civilized things.
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  #72 (permalink)  
Old 08-November-2007, 02:49 AM
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for what we know, a cow might be what is seen as very inteligent in the univers, and where just the super inteligent oddball's that make up less than 1%
It's a fun idea

Unfortunately the bones do not lie, the Dinosaurs mostly had a brain the size of a grape, and most of it was dedicated to simple tasks like biting, chasing, eating. This grape sized brain was for the simpler tasks, it was not a brain for remembering complex equations and not a complex brain developed for trying to write down languages.

Now other creatures like Whales and Chimpanzees are considered to be of high intelligence, maybe one day these creatures can evolve to create their own planet of the apes
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  #73 (permalink)  
Old 08-November-2007, 02:56 AM
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Now a dinosaur civilization isn't completely impossible. Since we are decended from large brained hunter/gatherers we expect civilizations to be built by animals like ourselves. However there are insects that engage in agriculture so it obvious that agriculture doesn't require big brains. It is possible that a small bird like dinosaur could have developed agriculture with a bird sized brain and then gone on to develop a central authority and large scale construction - the hallmarks of civilization.

Not that I think this is likely, just pointing out that a large body and brain might not be essential. Small brains adapted to agriculture might do.
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  #74 (permalink)  
Old 08-November-2007, 02:57 AM
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Originally Posted by Manchurian Taikonaut View Post
It's a fun idea

Unfortunately the bones do not lie, the Dinosaurs mostly had a brain the size of a grape, and most of it was dedicated to simple tasks like biting, chasing, eating. This grape sized brain was for the simpler tasks, it was not a brain for remembering complex equations and not a complex brain developed for trying to write down languages.

Now other creatures like Whales and Chimpanzees are considered to be of high intelligence, maybe one day these creatures can evolve to create their own planet of the apes
Some Dinosaurs had a walnut or grape sized brain, like the Stegosaurus- This was early in Dinosaur evolution.

They were significantly larger later on- especially in the small and fast predators.

Also, birds have very small, yet very complex and intelligent brains.
Your statement seems to be a bit of a "dinosaur." Outdated.

ETA: Quite a few birds are giving chimps a run for their money.
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  #75 (permalink)  
Old 08-November-2007, 03:03 AM
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Originally Posted by Manchurian Taikonaut View Post
Unfortunately the bones do not lie, the Dinosaurs mostly had a brain the size of a grape, and most of it was dedicated to simple tasks like biting, chasing, eating. This grape sized brain was for the simpler tasks, it was not a brain for remembering complex equations and not a complex brain developed for trying to write down languages.
What were the brains of our ancestors (synapsids) like at that time? Bigger? Smaller? Comparing what we've got now with what they had then fails to take into account many millions of years of lost potential for change and development.
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  #76 (permalink)  
Old 08-November-2007, 01:50 PM
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Originally Posted by Neverfly View Post
Also, birds have very small, yet very complex and intelligent brains.
Your statement seems to be a bit of a "dinosaur." Outdated.

ETA: Quite a few birds are giving chimps a run for their money.
Doesn't current theory state that birds are descended from the dinosaurs? If so, then they may yet evolve a civilization. I've read a few articles and one book on bird intelligence and, although controversial, some parrots and crows/ravens seem to demonstrate fairly high intelligence.
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  #77 (permalink)  
Old 08-November-2007, 02:28 PM
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Originally Posted by greenfeather View Post
Well I've been away from this forum for several months and it's great to some back & see a fun thread.

It seems everyone is defining civilization as making Stuff. I think that's a narrow definition. Someone mentioned finding a stone knife next to a dino fossil and that's an example of the problem. Dinos obviously have claws and don't need stone knives. The only reason humans need Stuff is because, as someone else noted, we have almost no physical attributes to help us survive.

So, other animals don't have cars & guns so we call them stupid. However scientists have found 'languages' in lots of other animals including prairie dogs. Animals have all kinds of ways of communicating with each other and detecting information. For all we know there are other species on this earth, in the past or on other planets, that have sophisticated communication abilities we can't even imagine. None of this would show up in the fossil record and we'd never have a clue that an advanced civilization existed.

I'm especially thinking about this in connection with all those planets we're finding that wouldn't support fire, combustion, ironmongering and all those civilized things.
my bold

First, welcome back greenfeather!

Second, well, if nothing shows up in the fossil record, and past or current animals have communication methods we can not image or detect, then we are out of the realm of science. You can speculate that penguins are having conversations about seven-dimensional geometry using pulsed graviton beams, but so what.

I also don't think that communication, in and of itself, makes for intelligence and/or a civilization. For example, bees and ants have systems for communications among their members, both I don't think that either are intelligent or have civilizations. What's the difference? Where do you draw the line? I'm not sure. Human civilization and ant "civilization" seem fundamentally different to me, but I'm not sure how to define it.
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  #78 (permalink)  
Old 08-November-2007, 02:55 PM
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Another myth that really took off after Jurrassic Park - that dinos were birds.
Forget it. They weren't birds - they shared birdlike qualities and certainly some species of dinosaur shared a root ancestor with birds; but keep in mind that birds existed simultaneously with dinosaurs.
Saying dinos are birds is like saying Humans are shrews. (No jokes... )
Another myth yet - ant this is the biggest one - is that here was one type of animal called 'dinosaur'. There wasn't. 'Dinosaurs' were not one particular type of animal with widely-varying body types; they were an entirely different class of creature. I think it's safer to think in terms of a completely different classification - somewhere between kingdom and phylum - for the creatures rather than trying to fit them into the 'lizard' category or some such.
Not a myth, sorry. According to modern cladistic taxonomy, birds are dinosaurs, because it's impossible to construct an evolutionary tree for all types of dinosaur that doesn't include birds as well, just as it's impossible to construct an evolutionary tree for all types of ape that doesn't include us.

OK. Dino civilisation. One of my favourite fringe ideas I have to say, mainly because I love dinos and I think they deserved their civilisation. Why should only the wussy mammals get one?

Most of the points raised here are hard to argue with. Of course, we probably would have found SOME evidence of an advanced dinosaur intelligence, such as worked flints, since we're able to locate their nests etc. BUT...

fossilisation is a very rare event, and only occurs under very specific circumstances. Plus, fossils are only preserved in very specific locations. One of the prerequisites of being fossilised is that you have to be very stupid (for instance, falling into quicksand), so it seems unlikely that an intelligent creature would end up fossilised.

If the civilisation cremated their dead, they would only be present in the geological record as ash.

Most of what we call civilisation (the monumental skyline of manhattan etc) would be unidentifiable crushed rock within 65 million years. Any of their archeological finds would be buried deep.

But in the end I think the NO camp wins out, because of the lack of worked flints and because there was no evidence by the end of the dino's reign that anything close to human intelligence was in the offing. Which is a shame.
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  #79 (permalink)  
Old 08-November-2007, 03:32 PM
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<snip>
One of the prerequisites of being fossilised is that you have to be very stupid (for instance, falling into quicksand), so it seems unlikely that an intelligent creature would end up fossilised.
Then how do homo sapiens, or their ancestors, get fossilized?