The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.
Another gizmo!?! Are you trying to end up like me? Bent over like Quasimoto?! :)
Fish can see color, and there's one very simple way to prove it without any experiments:
Fish ARE colorful!
If they couldn't see color, why would they change colors when the breeding season approaches? Or be different colors, so they can recognize members of their own species?
Now, white-tailed deer can NOT see color (which is why you can wear hunter orange and still not be spotted by them)
but then again, they're not colorful animals, rather being shades of brown, grey, and white...
Now, white-tailed deer can NOT see color
So, I guess Maples and Aspens can see color and Douglass fir can not?
There is plenty of scientific evidence that suggests that deer can see color. Although they are color blind on the longer wavelength end of the spectrum and see it as gray this is not true on the shorter end.