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How Peacocks See Their Feathers And Other Links

Part of a new study to show humans how different the world looks depending on your species. Also, an at home HIV test got approved by the FDA and Iran is shooting off long ranged missiles.

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"Birds have four types of cone cells, known as photoreceptors, in their eyes rather (we have three) - and can see many more colours than human beings. They can also see ultraviolet, which means that the 'eye' markings in a peacock's tail features looks sharper."

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