Улоги
- Peter Daszak
Self - Consortium for Conservation Medicine - Adrian Lister
Self - University College London - Andrew Kitchener
Self - National Museums of Scotland - Silvia Gonzales
Self - Liverpool John Moores University - Bill Montevecchi
Self - Seabird Ecologist - Jeremy Gaskell
Self - Author 'Who Killed the Great Auk' - Blair Van Valkenburgh
Self - UCLA - Tom Hayden
Self - University College Dublin - Christopher Shaw
Self - La Brea Tar Pits Manager - Greg McDonald
Self - US National Park Service - Larry Toler
Self - Bison Farmer - Eileen Johnson
Self - Texas Tech University - Nick Mooney
Self - Tasmanian Wildlife Manager - Pieter Floore
Self - Archaeologist - Julian Hume
Self - Paleontologist