- Author: William J. Long Marc Bekoff Rupert Sheldrake
- Language: English
- Year: 2005
- Author: Ph.D. Marc Bekoff
- Language: English
- Year: 2010
- Author: Ph.D. Marc Bekoff
- Language: English
- Year: 2010
- Author: Marc Bekoff Jessica Pierce
- Language: English
- Author: Colin Allen Marc Bekoff
- Language: English
- Year: 1999
- Author: Marc Bekoff
- Language: English
- Year: 2009
- Author: Marc Bekoff Dale Jamieson
- Language: English
- Year: 1995
- Author: Marc Bekoff Dale Jamieson
- Language: English
- Year: 1995
- Author: Marc Bekoff Jessica Pierce
- Language: English
- Year: 2009
- Author: Marc Bekoff John A. Byers
- Language: English
- Year: 1998