Battle of the Brains

Selected Bibliography

Two sources per animal. Click here for Full alphabetical list.

African Grey Parrot

Pepperberg, Irene. “Cognitive and Communicative Abilities of Grey Parrots.” Current Directions in Psychological Science – CURR DIRECTIONS PSYCHOL SCI 11 (June 1, 2002): 83–87.

Pepperberg, Irene M. “How Do a Pink Plastic Flamingo and a Pink Plastic Elephant Differ? Evidence for Abstract Representations of the Relations Same-Different in a Grey Parrot.” Current Opinion in Behavioral Sciences, Same-different conceptualization, 37 (February 1, 2021): 146–52.


Bottlenose Dolphin

Pack, Adam. “Language Research: Dolphins,” 2018.

Rohan, Anuschka de. “Why Dolphins Are Deep Thinkers.” the Guardian, July 3, 2003.



Hart, Benjamin L., Lynette A. Hart, and Noa Pinter-Wollman. “Large Brains and Cognition: Where Do Elephants Fit In?” Neuroscience & Biobehavioral Reviews 32, no. 1 (January 2008): 86–98.

McComb, Karen, Cynthia Moss, Soila Sayialel, and Lucy Baker. “Unusually Extensive Networks of Vocal Recognition in African Elephants.” Animal Behaviour 59, no. 6 (June 2000): 1103–9.

Portia Jumping Spider

Jackson, Robert R., and Fiona R. Cross. “Spider Cognition.” In Advances in Insect Physiology, edited by Jérôme Casas, 41:115–74. Spider Physiology and Behaviour. Academic Press, 2011.

Prete, Frederick R. Complex Worlds from Simpler Nervous Systems. MIT Press, 2004.



Crawford, L. E., L. E. Knouse, M. Kent, D. Vavra, O. Harding, D. LeServe, N. Fox, et al. “Enriched Environment Exposure Accelerates Rodent Driving Skills.” Behavioural Brain Research 378 (January 27, 2020): 112309.

“PRIME PubMed | Rats Know When They Remember: Transfer of Metacognitive Responding across Odor-Based Delayed Match-to-Sample Tests.” Accessed May 25, 2021.


Pelgrim, Madeline H., Julia Espinosa, Emma C. Tecwyn, Sarah MacKay Marton, Angie Johnston, and Daphna Buchsbaum. “What’s the Point? Domestic Dogs’ Sensitivity to the Accuracy of Human Informants.” Animal Cognition 24, no. 2 (March 1, 2021): 281–97.

Pilley, John, and Alliston Reid. “Border Collie Comprehends Object Names as Verbal Referents.” Behavioural Processes 86 (February 1, 2011): 184–95.



Heinrich, Bernd. “An Experimental Investigation of Insight in Common Ravens (Corvus Corax).” The Auk 112, no. 4 (October 1995): 994–1003.

Pika, Simone, Miriam Jennifer Sima, Christian R. Blum, Esther Herrmann, and Roger Mundry. “Ravens Parallel Great Apes in Physical and Social Cognitive Skills.” Scientific Reports 10, no. 1 (December 10, 2020): 20617.



Broom, Donald M., Hilana Sena, and Kiera L. Moynihan. “Pigs Learn What a Mirror Image Represents and Use It to Obtain Information.” Animal Behaviour 78, no. 5 (November 1, 2009): 1037–41.

Croney, Candace C., and Sarah T. Boysen. “Acquisition of a Joystick-Operated Video Task by Pigs (Sus Scrofa).” Frontiers in Psychology 12 (2021).


ScienceDaily. “Do Octopuses’ Arms Have a Mind of Their Own? Researchers Are Unravelling the Mystery of How Octopuses Move Their Arms.” Accessed May 11, 2021.

Wu, Katherine J. “When It Comes to Octopuses, Taste Is for Suckers.” The New York Times, October 29, 2020, sec. Science.


Discover Magazine. “Do Young Female Chimps Play with Sticks as Dolls?” Accessed May 29, 2021. 

McGrew, W. C. “Is Primate Tool Use Special? Chimpanzee and New Caledonian Crow Compared.” Philosophical Transactions of the Royal Society B: Biological Sciences 368, no. 1630 (November 19, 2013).

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