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Posts: 263
Feb 23 09 7:29 AM
You can show that they see colors experimentally. For instance you let the coyote enter a cage with a blue plate and grey plate. Do this repeatedly always leaving a chunk of beef behind the blue plate while switching the locations of the plates around each time. If the coyote begins automatically going to the blue plate first every time you let him into the cage (even if there's no treat there) he can see the difference between the two colors. How you can tell that blue to them looks like the way we see red is beyond me. Maybe they think they know based on the kind of cells found in the retina.
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