Making economic decisions in a natural foraging situation that involves the use of tools may require an animal to consider more levels of relational complexity than merely deciding between an immediat
In the genus Aphaenogaster, workers use tools to transport liquid food to the colony. During this behaviour, ants place or drop various kinds of debris into liquid or soft food and then they carry t
P-values calculated from exact two-tailed binomial tests. NS = not significant with a Bonferroni correction. Significant p-values are highlighted in bold. “Incorrect”–selected incorrect choice above c
The ability to make profitable decisions in natural foraging contexts may be influenced by an additional requirement of tool-use, due to increased levels of relational complexity and additional work-e
