I learnt of it through the pictures in Dawkins'
The Greatest Show On Earth. This wasp fiendishly paralyzes a caterpillar and lays its eggs inside it, which, when they hatch, eat the caterpillar alive from the inside out - saving the heart for last.
Come to think of it, the religious might
like this sort of thing
http://blog.nus.edu.sg/lsm1303studen...nsect-kingdom/