The idea of a caterpillar that eats a snail seems impossible -- like finding a new species of wolf that dives for and dines on clams, says a University of Hawaii researcher.

But that is what Daniel Rubinoff of the College of Tropical Agriculture and Human Resources discovered and reported in yesterday's issue of the journal Science with his graduate student William Haines.

The unique behavior occurs in predatory caterpillars in the genus Hyposmocoma, found only in Hawaii, he said.

Just thought this was neat.