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image: Really Bad Breath

Really Bad Breath

By Abby Olena | January 3, 2014

Tobacco hornworms release puffs of nicotine that deter some predators.

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image: An Olfaction Odyssey

An Olfaction Odyssey

By Megan Scudellari | October 1, 2013

Thanks to a book, a war, and a big green caterpillar, John Hildebrand found himself mapping the exquisite and surprising wiring of the insect olfactory system.

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