Quote:
Originally Posted by HarryT
In an aside, I would note that bulls, like pretty much all mammals with the exception of primates, have "dichromatic" colour vision with only two different types of colour receptor, compared with our three. This means that they can distinguish different shades of blue, green, and yellow, but they can't see reds or oranges. If you want to actually attract a bull's attention, your flag should be blue or yellow, rather than red  . |
Baby bison are born orange and graze in green grass. They stick out like a sore thumb to us primates; but are quite invisible to those hungry wolves lurking about.