The Milwaukee Public Museum (MPM) collection contains amphibians and reptiles from around the US, especially the Midwest, and from the West Indies, where retired Curator Robert Henderson still does research. MPM has collected these animals since the late 1800s to document the tremendous variety of animal life on our planet. Today, the MPM vertebrate zoologists center their research on the classification, evolution, natural history and ecology of animals with an emphasis on documenting biological diversity.