Lollipops with side effects: Plant's sugary offering betrays caterpillars to predatory ants

Trichomes, hair-like projections on leaves, are part of a plant's defense against herbivores: they can be obstacles, traps, or reservoirs for toxic substances. The hairs of wild tobacco Nicotiana attenuata contain primarily acyl sugars, which are composed of the common sugar, sucrose, bound to branched chain aliphatic acids, compounds that give baby vomit its distinctive odor. Tiny, freshly hatched caterpillars consume these sweet secretions.

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