Predator Free 2050 has major benefits for human health [Science] 15/01/2018 The Predator Free 2050 campaign to rid New Zealand of rats and possums will have major benefits for human health as well as for native plants and animals, says University of Otago, Wellington public health researcher Dr Mary McIntyre. http://www.otago.ac.nz/news/news/otago672618.html