 For some, the current philosophical interest in comparative cognition was inspired by series of books written by zoologist Donald Griffin arguing for animal thinking and animal consciousness (Griffin 1976 [1981], 1985, 1992 [2001]), topics that were not at the time taken up by scientists. Collaborations between scientists and philosophers provided a rich environment for initial work on these issues. Notably, in philosopher Colin Allen and biologist Marc Bekoff’s book Species of Mind: The Philosophy and Biology of Cognitive Ethology (1997), the interdisciplinary team introduced many issues arising in the science of animal minds to the broader philosophical community.