Professor Wang specializes in the fossil evolution, systematics, and phylogeny of mammals of the Cenozoic. He has researched the biostratigraphy of Inner Mongolia and Asia as a whole, the geochronology of Asia, paleoenvironments of the Tibetan Plateau, and mammalian migrations between Eurasia and North America. Wang has also investigated the systematics and phylogeny of canids (dogs and their kin) as well as Late Eocene through Pleistocene fossil mammals of Southern California and Mexico. (see Natural History Museum of LA).