really how old are modern grey cities?

[Igo kyu]

Originally Posted by :FI:Sneaky

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:



and grey squirrel is not taht grey:




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.

[raaaid]

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

[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]

Originally Posted by raaaid

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.