Samuel Turvey is Research Fellow at the Institute of Zoology, a department of the Zoological Society of London. He is a conservation biologist with a principal interest in the history and prehistory of human-caused extinctions and in developing conservation strategies for today's threatened species. He was deeply involved with the conservation efforts surrounding the Yangtze River dolphin, and was the lead author of the 2007 paper in Biology Letters which declared that it was probably extinct, generating tremendous international media attention. He has published numerous other academic papers in a range of scientific journals, including Nature.