really how old are modern grey cities?

[raaaid]

http://www.randomfunstuff.com/catalog/rcitycamoc.JPG

http://pinknpurplelizard.files.wordpress.com/2008/06/pigeon1.jpg

either evolution is faster thatn were told or cities more ancinet:confused:

[swiss]

Funny you come with this question.
I recently wondered myself why those flying rats are grey - unfortunately I forgot to follow this lead. Thanks to you I just checked.
Here you go:

1. http://en.wikipedia.org/wiki/Rock_Pigeon

2. http://en.wikipedia.org/wiki/Feral_Pigeon

[raaaid]

yeah but doesnt really answered the question

polars bears are white

forest creatures brown

and city pigeons grey?

come on the only advnatage of grey camoflage its if you live in a city

[JG52Krupi]

Grey squirrel... ;)

[swiss]

yeah but doesnt really answered the question

polars bears are white

forest creatures brown

and city pigeons grey?

come on the only advnatage of grey camoflage its if you live in a city

WTF?
Did you actually read the link?

City Pigeons are Rock Pigeons.
I think it's safe to assume Rock pigeons were already blue/greey back in 1780 - and possibly even before...
:rolleyes:

[winny]

yeah but doesnt really answered the question

polars bears are white

forest creatures brown

and city pigeons grey?

come on the only advnatage of grey camoflage its if you live in a city

Rocks are grey. Rock pigeons are grey. Cities only became grey with the advent of concrete. Wolves are grey, they don't live in cities.

The reason 'city' or rock pigeons are grey is that they used to live in cliffs.
Your suggestion that either evolution is fast or that modern cities are ancient is flawed because it ignores the real reason, ie. pigeons moved from their natural habitat, rocks and cliffs, due to an abundance of food. That's all.
Why are rats brown? They live in cities. By your reckoning they should be grey too, and foxes. Debunked.

Edit. I reckon you need to read up on evolution.

[:FI:Sneaky]

yeah but doesnt really answered the question

polars bears are white

forest creatures brown

and city pigeons grey?

come on the only advnatage of grey camoflage its if you live in a city

This assumes animals can perceive colour (which refers to another thread someplace, and indeed how we perceive it.)

[Igo kyu]

This assumes animals can perceive colour (which refers to another thread someplace, and indeed how we perceive it.)
Birds can, some fish see five colours compared to the three that humans do. It's the other mammals, which are often nocturnal when there is little colour to be seen, that are frequently unable to see as many colours as we do.

[raaaid]

grey wolves are adapated to snow:

http://cache2.allpostersimages.com/p/LRG/21/2142/6MRED00Z/posters/vezo-tom-grey-wolves-showing-fur-colour-variation-canis-lupus.jpg

and grey squirrel is not taht grey:

http://www.bredapest.com/wp-content/themes/breda/images/squirrels-as-pets1.jpg


seems grey wolves are a cross of forest and snow wolves

but i dont have notice of grey cliffs

[swiss]

Crazy, and seagulls are white. :eek:

[raaaid]

"Why are rats brown? They live in cities. By your reckoning they should be grey too, and foxes. Debunked."

http://3.bp.blogspot.com/_dS9o2xQUbsU/R1Q-3rrGXzI/AAAAAAAAAFw/J37Fx9IDgyA/s1600-R/rat_2.jpg

[swiss]

Are you grey too?

Why are cows not green?

[raaaid]

optic camoflage like zebras so predators dont know where one cow starts and ends another in the herd

im a top predator i need not camouflage :)

[swiss]

im a top predator i need not camouflage :)

I sometimes feel tempted to show you how very wrong you are. ;)

[major_setback]

I've always thought it strange that there are so few green animals.

[von Pilsner]

I'm not an Ornithologist, but perhaps the color of birds is not always liked to camouflage as you might expect. Could be the females prefer a certain color or perhaps grey is unappealing to certain predators.

[swiss]

or perhaps grey is unappealing to certain predators.

Guess you're right, it never occurred to me to hunt a mouse.
I fact I prefer cows or deers.
Which is funny as they have the same colors a fecals.
Weird, huh?

[JimmyBlonde]

So, are we to assume that there was once a psychadelic utopia in pre-historic times?

http://www.gmagazine.com.au/files/imagecache/node/askg/Bird-watching.jpg

[raaaid]

they camopuglage as fruits and flowers :)