Eco-friendly pest control is all the rage. It took the near-demise of the bald eagle to stop the world from using DDT to control mosquitoes (a move said to have inadvertently drove up the number of malaria cases)and other agricultural pests for us humans to learn that, "Dude, you gotta also look at the bigger picture."
How do you kill an invasive nocturnal predator that was accidentally introduced into the ecosystem of an island? By parachuting dead mice laced with toxin onto the tree-tops where said predator inhabits. Bear in mind that the parachute systems evaluated includes those that make sure the poisoned bait stays on the tree-tops and not harm the innocent crabs living below on the ground.
Is that ingenious or what?