Hero Rats: Because Land Mines Stink and Rats Smell Good*

Hero Rats are rats that sniff out land mines so they can then be dug up and disposed of instead of blowing up small children. Here's a link to some info from Metafilter. Here's HeroRat.org, where you can read all about it. Here's how you adopt a rat (ours is named Rosie).

Philosoraptor: saving the world one wee rodent at a time.

(* Cool yr jets, grammar cops.)