The smell of freshly cut grass on a warm summer day might make you think of lazy days in a hammock, sipping lemonade. But to the mangled grass producing that scent, it is the pungent perfume of pure terror…

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Sources:
http://mentalfloss.com/article/30573/what-causes-fresh-cut-grass-smell
http://science.sciencemag.org/content/329/5995/1075.abstract

Mown grass smell sends SOS for help in resisting insect attacks, researchers say


https://www.sciencedaily.com/releases/2014/09/140922145805.htm

That ‘fresh-mown lawn smell’ is actually a distress call to insects


http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.544.4066&rep=rep1&type=pdf
http://www.ncbi.nlm.nih.gov/pubmed/19206090
https://books.google.com/books?id=4tETDAAAQBAJ&pg=PA455&lpg=PA455
http://www.nap.edu/read/9650/chapter/7#111
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3794753/
http://learn.genetics.utah.edu/content/selection/corn/

What Makes Fresh Cut Grass Smell?

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