Using the Aesop’s Fable paradigm to investigate causal understanding of water displacement by New Caledonian crows: Example trials for each of the six experiments.
For more information: https://dx.plos.org/10.1371/journal.pone.0092895
Jelbert SA, Taylor AH, Cheke LG, Clayton NS, Gray RD (2014) Using the Aesop’s Fable Paradigm to Investigate Causal Understanding of Water Displacement by New Caledonian Crows. PLoS ONE 9(3): e92895. doi:10.1371/journal.pone.0092895