Yes, I once found a very red dock leaf in a field. It was dying and had turned bright red. I wondered if Misty would be interested (I am always experimenting with dogs and colour vision!)
I held up a green dock leaf, and the bright red one. Misty obviously saw it from a short distance and came up to check it out. She went directly for the red one, ignoring the green one!
i.e. -the colour attracted her from 30ft or so.
Now was that because she saw a shade of grey as opposed to a violet shade??
Or is that because she saw bright red? Hard to prove.....
I suppose scientists have come to their conclusions about dogs and colour vision by analysing the structure of the light-sensitive retinas of dogs' eyes, and how they differ from humans'.
But all I can say is practical experiments "in the field" have made me wonder.....
And yes....humans all see colour differently. Many greenish-blues I see as predominantly 'blue', others I have known have seen as distinctly 'green'.
I held up a green dock leaf, and the bright red one. Misty obviously saw it from a short distance and came up to check it out. She went directly for the red one, ignoring the green one!
i.e. -the colour attracted her from 30ft or so.
Now was that because she saw a shade of grey as opposed to a violet shade??
Or is that because she saw bright red? Hard to prove.....
I suppose scientists have come to their conclusions about dogs and colour vision by analysing the structure of the light-sensitive retinas of dogs' eyes, and how they differ from humans'.
But all I can say is practical experiments "in the field" have made me wonder.....
And yes....humans all see colour differently. Many greenish-blues I see as predominantly 'blue', others I have known have seen as distinctly 'green'.
