Animal training can teach carrion crows to use a stick tool to retrieve food. With increasing practice, they not only demonstrate great skill and achieve their objective in a few steps, they also ...

In 2016, researchers from the University of Oxford published footage of New Caledonian crows in the wild doing something that had never been documented outside a laboratory: combining two separate ...

A study of New Caledonian crows, which use sticks to fish beetle larvae out of tree trunks, shows exactly how advantageous tool use can be for animals. "Evolutionarily, animals that use tools have an ...