Plant security

[iago]

http://www.schneier.com/blog/archives/2009/12/plant_security.html

Very cool -- apparently, when plants are being eaten by, for example, a caterpillar, they'll release chemicals that attract both dragonflies and parasites, both of which will feed on the caterpillar.

[rabbit]

This is the entire plot of the movie The Happening.  Only instead of caterpillars, it's humans, and instead of dragonflies, it's suicide.

[iago]

My friend had an interesting comment: the article doesn't mention fruit-bearing plants, which *want* to be eaten (in order to spread the seeds), and that doesn't die (or get harmed) when that happens.