That little green crocodile...sitting on the heart of collared shirts everywhere. It's a preppy status symbol, sure, but there's a pretty interesting history to how that guy got there, and influenced the whole logo/animal on your polo shirt phenomenon,Threaded, a column on the Smithsonian magazine site, has the details. It's a quick interesting read on the development of the polo shirt, the contributions of French tennis player René LaCoste, and the countless imitators it spawned. Check it out at Threaded: