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Dino Colors


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#16    Phowl

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Posted 27 March 2006 - 03:32 PM

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i wish they looked like this

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there's your pink T-Rex    thumbsup.gif user posted image


haha!

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#17    Pilgrim_Shadow

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Posted 27 March 2006 - 07:11 PM

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Many dinosaur colors are just pure speculation, but its practical that the head crests of dinos like Dilophosaurus and Crylophosaurus were brightly colored to attract mates. Maybe even the sails or Spinosaurus and Ournanosaurus were used for mating


Quite so. Also - and this is important - most reptiles and birds have color vision. Most mammals do not, so mammals often have drab coloration. Birds and reptiles, however, are extremely colorful. Since dinosaurs are closely related to both birds and reptiles, it seems reasonable to assume that many of them had color vision as well. And when you have color vision, you can use color to differentiate your species from another.

I think it's likely that dinosaurs were, on the whole, colorful creatures. Whereas they are usually depicted in drab olive green or dusty brown, they probably had numerous spots, stripes, or other patterns of brown, black, white, green, red, orange...some used to find mates, some used for cameoflauge, some used as a warning to other creatures.

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#18    GreyWeather

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Posted 30 March 2006 - 10:33 PM

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Quite so. Also - and this is important - most reptiles and birds have color vision. Most mammals do not, so mammals often have drab coloration. Birds and reptiles, however, are extremely colorful. Since dinosaurs are closely related to both birds and reptiles, it seems reasonable to assume that many of them had color vision as well. And when you have color vision, you can use color to differentiate your species from another.

I think it's likely that dinosaurs were, on the whole, colorful creatures. Whereas they are usually depicted in drab olive green or dusty brown, they probably had numerous spots, stripes, or other patterns of brown, black, white, green, red, orange...some used to find mates, some used for cameoflauge, some used as a warning to other creatures.

-Pilgrim


also, aren't the sail's thought to have been a way to keep them cool? as the sail 'bones' are hollow, allowing blood to circulate therefore cooling them down.

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#19    Pilgrim_Shadow

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Posted 30 March 2006 - 10:54 PM

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also, aren't the sail's thought to have been a way to keep them cool? as the sail 'bones' are hollow, allowing blood to circulate therefore cooling them down.


That is the prevailing theory, although not the only one. However, a sail can serve more than one function. It could help regulate body temperature AND have bright markings to attract mates.

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"Shadow," said he,
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This land of Eldorado?"

"Over the mountains
Of the moon,
Down the valley of the Shadow,
Ride, boldly ride!"
The shade replied,
"If you seek for Eldorado!"

#20    GreyWeather

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Posted 30 March 2006 - 11:13 PM

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That is the prevailing theory, although not the only one. However, a sail can serve more than one function. It could help regulate body temperature AND have bright markings to attract mates.

-Pilgrim


yeah, s'why I said "also" at the beginning of my post, as to carry it on and name another feature they could have been used for.

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#21    frogfish

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Posted 31 March 2006 - 02:17 AM

Sails were probably also used for mating, if indeed the dinosaurs were "dino-blooded".

Pilgrim, the only problem I have with Warning stripes is that no dinosaur is venemous or such..."Warning Colors" would act more like a dinner bell for large theropods.

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#22    Pilgrim_Shadow

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Posted 31 March 2006 - 12:40 PM

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Sails were probably also used for mating, if indeed the dinosaurs were "dino-blooded".

Pilgrim, the only problem I have with Warning stripes is that no dinosaur is venemous or such..."Warning Colors" would act more like a dinner bell for large theropods.


No dinosaur is known to have been venomous. Given the incomplete nature of the fossil record, that cannot be assumed to be absolute. At any rate, I was speaking hypothetically.

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"Shadow," said he,
"Where can it be,
This land of Eldorado?"

"Over the mountains
Of the moon,
Down the valley of the Shadow,
Ride, boldly ride!"
The shade replied,
"If you seek for Eldorado!"

#23    frogfish

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Posted 01 April 2006 - 12:02 AM

Well, any KNOWN dino is not venemous...

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