![image](myerspel4e_fig_7_08.jpg)
FIGURE 7.8 Other animals also display face smarts After food rewards are repeatedly associated with some sheep faces, but not with others, sheep remember those faces for two years (Kendrick & Feng, 2011).
Reprinted by permission by Macmillan Publishers Ltd: Nature, “Sheep Don’t Forget a Face,” Keith M. Kendrick, Ana P. da Costa, Andrea E. Leigh, Michael R. Hinton & Jon W. Pierce Vol. 414, November, 2001, p. 165.