article thumbnail

The Incredulous New Caledonian Crows

10,000 Birds

Even among our primate relatives, whoa are generally very smart, “Theory of Mind” is found in only a few species. The next graph shows the average number of times per trial that the crow decided to abandon an effort to get at the food. But, the number of abandonments is greater than zero for the case of the Unknown Causal Agent.

Abandon 220