Der Spiegel
Magee, B., and R. E. Elwood. 2013. Shock avoidance by discrimination learning in the shore crab (Carcinus maenas) is consistent with a key criterion for pain. Journal of Experimental Biology 216:353–58.
Carcinus maenas
Journal of Experimental Biology
Maslow, A. H. 1936. The role of dominance in the social and sexual behavior of infra-human primates: I. Observations at Vilas Park Zoo. Journal of Genetic Psychology 48:261–77.
Journal of Genetic Psychology
Masson, J. M., and S. McCarthy. 1995. When Elephants Weep: The Emotional Lives of Animals. New York: Delacorte.
When Elephants Weep: The Emotional Lives of Animals
Mathuru, A. S., et al. 2012. Chondroitin fragments are odorants that trigger fear behavior in fish. Current Biology 22:538–44.
Current Biology
Matsuzawa, T. 2011. What is uniquely human? A view from comparative cognitive development in humans and chimpanzees. In The Primate Mind, ed. F. B. M. de Waal and P. F. Ferrari, 288–305. Cambridge, MA: Harvard University Press.
The Primate Mind
McConnell, P. 2005. For the Love of a Dog. New York: Ballantine Books.
For the Love of a Dog
McFarland, D. 1987. The Oxford Companion to Animal Behaviour. Oxford: Oxford University Press.
The Oxford Companion to Animal Behaviour
Mendl, M., O. H. P. Burman, and E. S. Paul. 2010. An integrative and functional framework for the study of animal emotion and mood. Proceeding of the Royal Society B 277:2895–904.
Proceeding of the Royal Society
Michl, P., et al. 2014. Neurobiological underpinnings of shame and guilt: A pilot fMRI study. Social Cognitive and Affective Neuroscience 9:150–57.
Social Cognitive and Affective Neuroscience