Spersticide

“Research by Harvard University found that men who ate the greatest amount of fruit and vegetables with high levels of pesticide residue had a 49% lower sperm count and a 32% fewer normally formed sperm than those who consumed the least.” (http://www.theguardian.com/environment/2015/mar/31/pesticide-residue-food-sperm-quality-harvard)

Feminists applauded the report for demonstrating that libidinous males are pests.

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Puffing

“One excerpt shows a group of dolphins nudging and chewing on a pufferfish, causing the fish to release its defensive toxins. They then pass the fish around, take in the toxins and appear to go into a trance-like state.” (http://uk.whales.org/news/2014/01/documentary-reveals-more-unusual-side-to-dolphin-recreation)
(http://www.bbc.co.uk/programmes/p01pfwhk)

Taking enough toxin for recreation without harming yourself shows more intelligence than certain other species.