On 2016-12-27 5:10 PM, sf wrote:
> On Tue, 27 Dec 2016 15:49:46 -0500, Dave Smith
> > wrote:
>
>> On 2016-12-27 11:55 AM, wrote:
>>> I think only primates, birds and insects see colors.
>>>
>>
>> Apparently there are studies that suggest that horses and similar
>> animals have some ability to detect greens and yellows. I got a kick of
>> out of some people at our local dog park took it upon themselves to
>> paint some metal pipes with a florescent green yellow paint. I
>> wondered if they realized that it is not likely to be any more visible
>> that the old colour, since dogs can't really distinguish colour the wau
>> we can.
>
> Wouldn't the florescent paint be for their owners? The only use dogs
> would have for a pipe is as an object to pee on.
>
The owners were concerned that their very active dogs would run into the
pipes and get hurt. They aren't the sort of people I would bother
arguing with. If they want to think that their dogs would not get hurt
running into a pole because it has been spray painted with a colour that
dogs don't see I don't see much point in arguing with them. Dogs run
into things because they are distracted so the colour is irrelevant.