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30 Nov 2017 3:35 PM
Everyone has melanin in the iris of their eye, and the amount that they have determines their eye colour, says Dr. Gary Heiting
19 Dec 2016 1:59 AM
Forget drugs or staying awake for five days in a row, all you need to hallucinate is another pair of eyes and a spare 10 minutes.
01 Dec 2016 12:08 AM