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Extinct Animal Questions
Topic Started: Nov 26 2013, 10:24 PM (193,488 Views)
Similis
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They would. But some people place their own opinion above scientific analyses.
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DinoBear
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Why... why must this thing exist? Why must it haunt my nightmares?
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CyborgIguana
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It looks to me like a rather standard marine reptile...what's so nightmarish about it?

EDIT: Ok, I take it back. I'll never sleep again!
Edited by CyborgIguana, Feb 4 2014, 09:52 PM.
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Stan The Man
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Evolution had a little too much and made that while under the influence.
Anyways I'm wondering if Velociraptors could've used their tails as a decoy plant to lure prey in had their tails been colored green- could that have been a possibility?
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CyborgIguana
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Hmm...it's certainly not out of the question, but I think it's much too speculative to warrant an actual scientific hypothesis. It should be noted, however, that green is a colour carnivorous birds today aren't known to come in.
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Similis
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MrRabbid
Feb 4 2014, 09:48 PM
Evolution had a little too much and made that while under the influence.
Anyways I'm wondering if Velociraptors could've used their tails as a decoy plant to lure prey in had their tails been colored green- could that have been a possibility?


As far as I know, to get green, it would need copper. So insect-rich diet. No clue how would it work out though.
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CyborgIguana
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It could work if insectivores made up an important component of Velociraptor's diet. The raptors would get copper from the insectivores who get it from the insects.
Edited by CyborgIguana, Feb 4 2014, 10:08 PM.
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Similis
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Which means that by adapting to hunt these insectivores primarily, the leaf-tail would be quite useless for obtaining the main prey items, since they'd not dig that lure. Plus, insectivores would have to contain lots of copper too, not utilize it in any way.
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Stan The Man
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Dammit science, you crushed my speculation.

But who thought it was a neat proposal?
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CyborgIguana
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If ceratopsians were omnivorous, could that mean that other marginocephalians were as well? Pachycephalosaurs certainly preserve some meat-eating anatomy IMO.
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Similis
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I honestly doubt that all 'herbivorous' dinosaurs were strictly herbivorous. If it fits-it gulps. No questions asked. Sustenance is sustenance.
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Even
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But wouldn't the required protein intake of herbivores be less than carnivores? Ceratopsians are more boar-like or at most bear-like than lion-like in behaviour, I think...
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izzibob
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ok paleo nerds, I has question. When I was younger, I loved dinosaurs. As the years went by I was less and less interested, until I practically stopped caring altogether. but then I came to trt. And suddenly, I see triceratops with FREAKING SPINES IN IT'S BACK. may I ask why/how/what/who/WAI? thanks xD
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Similis
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Even
Feb 9 2014, 02:26 AM
But wouldn't the required protein intake of herbivores be less than carnivores? Ceratopsians are more boar-like or at most bear-like than lion-like in behaviour, I think...


It's all about digestive system and capablity of consuming food. If we compare dinosaurs to modern day animals, we see deer eating bird nests, boars eating carrion or attacking much weaker animals, bears being general omnivores or dogs gnawing on grass, but we don't see predatory deer or grazing eagles. Assumption that a ceratopsian of Trike's size would be an apex predator is simply ridiculous in its core, as it would mean that the environment had 2 large predatory animals that we find multiple remains of. Furthermore we have signs of predation and consumption of Tyrannosaurus on Triceratops, but also no signs of Triceratops predation on anything whatsoever.

izzibob
Feb 9 2014, 03:07 AM
ok paleo nerds, I has question. When I was younger, I loved dinosaurs. As the years went by I was less and less interested, until I practically stopped caring altogether. but then I came to trt. And suddenly, I see triceratops with FREAKING SPINES IN IT'S BACK. may I ask why/how/what/who/WAI? thanks xD


http://en.wikipedia.org/wiki/Psittacosaurus#Integument
http://en.wikipedia.org/wiki/Tianyulong_confuciusi#Discovery
http://en.wikipedia.org/wiki/Pegomastax
http://en.wikipedia.org/wiki/Triceratops#Description

More primitive Ornithischians and Marginocephalians had filamentous integument on their bodies. Undescribed specimens of Triceratops are said to possess signs that it could also show some bristle-like skin growths, whether it's more speculative or not I can't say at the moment, but the era of entirely bald Ornithischians has come to an end.
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Even
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@MrGorsh: I agree with you. I tend to think the extent of marginocephalian omnivory is akin to black bears or boars, in that they won't really search for meat, but won't object to eating the old and the weak
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