One of the great biologists of my generation was Thomas Eisner, and we were saddened by his recent death. He studied many things and used his cleverness to figure out a great many ways with which insects interacted with the rest of the world. A very nice post on some of the highlights of his career can be found at the Artful Amoeba, a very fitting tribute to his career. The Phactor heard Tom give several lectures and they were always interesting, and a couple of my colleagues studied with Eisner too. Just excellent biology.