Brazilian Hura trees launch seeds using tension created by varying rates of evaporation.

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"The most dramatic of…detonating seed-containers belongs to a Brazilian tree. Its botanical name is Hura, but it is sometimes engagingly known as monkey's dinner-bell. When it dries out and finally explodes, it hurls its seeds for distances of over forty feet and the bang it makes as it does so is quite enough to convince nervous strangers in the forest that they are under attack." (Attenborough 1995:16)

The Private Life of PlantsAugust 21, 1995
David Attenborough

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