Only about 16.000 years ago, the sex act - and a hunch of the principle of procreation - appeared on cave paintings. https://www.amazon.com/Flora-Unveiled-Discovery-Denial-Plants/dp/0190490268/ref=sr_1_1?s=books&ie=UTF8&qid=1492979683&sr=1-1&keywords=Flora+Unveiled …pic.twitter.com/VAaIu1UNfK
7:38 AM - 24 Apr 2017
from Bonn, Germany
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