Male zebra longwing butterfly vision sticks to a duller pallette, perhaps for mating reasons. The genes that explain this may help unlock how differences between sexes evolve. By Veronique Greenwood ...
Butterfly experts have suspected for more than 150 years that vision plays a key role in explaining wing color diversity. Now, for the first time, research shows the truth in this theory -- at least ...
Most mammals such as humans possess three types of photoreceptors in their eyes: cone cells, rod cells, and photosensitive retinal ganglion cells. Cone cells allow us to detect color vision in bright ...
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