Dr. Dan Fisher, a renowned palaeontologist and curator of the Museum of Palaeontology at the University of Michigan in the U.S., has been studying mammoths for 30 years. Shortly after arriving in Ann Arbor in 1979, Fisher was called to several local sites where remains of mastodons turned up during excavation of farm ponds. Evidence at some of these sites suggested that humans had been involved in butchering of mammoths, which led to Fisher’s further investigation of the link between humans and the late Pleistocene mega faunal extinctions. Fisher’s studies also focus on the structure and composition of mastodon and mammoth tusks to reconstruct their behaviour, growth history, nutritional status, reproductive biology and response to environmental conditions. He has participated in over 20 excavations world-wide to uncover various Ice Age fauna.