+**Tool use** is the application of an external object as a means to achieve a goal. This fundamental behavior is a hallmark of [Intelligence](/wiki/intelligence) and [Cognition](/wiki/cognition), observed across diverse species. It represents a critical interaction with the environment, often indicating advanced problem-solving capabilities.
+## See also
+- [Animal Behavior](/wiki/animal_behavior)
+- [Technology](/wiki/technology)
+- [Human Evolution](/wiki/human_evolution)
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