1975 LaSalle College, Philadelphia, Penn., USA
1979 Stirling University, Stirling, Scotland, UK
1986 Ludwig-Maximilians University, Munich, Germany
1986 Zoologisches Institut der Universitat Munchen, Munchen, Germany
1986 Tufts University, Boston, Mass., USA
1988 University of North Carolina, Greensboro, N.C., USA
1990 University of Pennsylvania, Philadelphia, Penn., USA
1991 Colorado College, Colorado Springs, Colo.,USA
1993 College of William and Mary, Williamsburg, Va., USA
1993 University of Miami, Coral Gables, Fla., USA
1994 Utrecht University, Utrecht, Netherlands
1996 Western Connecticut State University, Danbury, Conn., USA
1996 Salisbury State University, Salisbury, Md., USA
1997 University of Edinburgh Veterinary School, Edinburgh, Scotland, UK
1998 University of Guelph, Guelph, Ontario, Canada
1999 Albright College, Reading, Penn., USA
2000 Wesleyan College, Macon, Ga., USA
2001 University of Minnesota, Minneapolis, Minn., USA
2001 University at Buffalo, Buffalo, N.Y., USA
2001 Ryerson University, Toronto, Ontario, Canada
2001 Providence University, Taiwan, Republic of China
2002 Elon University, Elon, N.C., USA
2002 Sweet Briar College, Sweet Briar, Va., USA
2003 University of Central Lancashire, UK
2004 University of Natal, Pietermaritzburg, South Africa
2004 Haverford College, Haverford, Penn., USA
2005 Pecs University, Pecs, Hungary
2005 Syracuse University, Syracuse, N.Y., USA
2005 Rutgers, The State University of New Jersey, Camden, N.J., USA
2006 The Open University of Tanzania, Dar es Salaam, Tanzania
2007 Doane College, Crete, Neb., USA
2007 Uppsala University, Uppsala, Sweden
2007 Kyoto University, Kyoto, Japan
2007 University of Liverpool, Liverpool, UK
2008 Lehigh University, Bethlehem, Penn., USA
2008 University of Toronto, Toronto, Canada
2008 University of Haifa, Haifa, Israel
2008 National Taiwan University of Science and Technology, Taiwan, Republic of China
2009 University of Liège, Liège, Belgium
2009 University of Pablo de Olavide, Seville, Spain
2009 University of Alicante, Sant Vicent del Raspeig/Alicante, Spain
2011 American University of Paris, Paris, France
2011 Giordano Bruno GlobalShift University, Budapest, Hungary
2011 Maimonides University, Buenos Aires, Argentina
2012 National Tsing Hua University, Taiwan
2012 Goldsmiths, University of London, UK
2013 University of St. Andrews, Scotland, UK
2013 Trinity College, Dublin, Ireland
2013 St. Ignatius of Loyola University, Peru
2014 University of South Australia, Adelaide, Australia
2016 University of Redlands, Redlands, CA