Quote Originally Posted by Firn View Post
2) The colour spectrum of the predator, prey and habitat during it's prime hunting periods over the 24 h cycle is is different from the one observed during day time.

3) Cats see better at night then primates while their sight is more accute then deer prey. Truth be told I don't know how much light they gather relative to deer, but in general a stalk is easier in during a time full of long shadows, low light and coarse vision resolution.
This is related to the fact that they are dichromats, yes?

Quote Originally Posted by Firn View Post
For example some birds and monkeys are know to be keen spotters (generally in good light conditions) of the cats and sound loud warnings.
By the same token, this is related to the fact that primates are trichromats, right? And I believe that it has been suggested that some birds possess superior color vision to humans.