Figure 10 (top): Sourced from http://serendip.brynmawr.edu; Figure 10 (bottom): Gould, J. L. and Gould, C. G. (1999) The Animal Mind, Scientific American Inc. ©
Figure 10 (top): Sourced from http://serendip.brynmawr.edu; Figure 10 (bottom): Gould, J. L. and Gould, C. G. (1999) The Animal Mind, Scientific American Inc.