| 2009 | Gretchen Cara Daily |
|---|---|
| 2008 | Dr. Phan Nguyen Hong |
| 2007 | Dr. Georgina M. Mace |
| 2006 | Dr. Raman Sukumar |
| 2005 | Dr. Daniel Pauly |
| 2004 | Prof. Julia C. Lillo |
| 2003 | Dr. Peter H. Raven |
| 2002 | The Charles Darwin Research Station |
| 2001 | Prof. Anne W. Spirn |
| 2000 | Sir David Attenborough |
| 1999 | Dr. Wu Zheng-Yi |
| 1998 | Dr. Jared M. Diamond |
| 1997 | Dr. Richard Dawkins |
| 1996 | Dr. George B. Schaller |
| 1995 | Dr. Tatuo Kira |
| 1994 | Dr. Jacques F. Barrau (Deceased) |
| 1993 | Sir Ghillean Prance |