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 ...

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 ...

""We observed a new mode of tool use that was not known before. We saw them use tools on the ground, using a little grass stem to poke and fish into nests,"" researcher Christian Rutz of England's ...

Scientists have confirmed that a species of wild crow from New Caledonia in the South Pacific can craft tools. The birds were observed bending twigs into hooks to extract food hidden in wooden logs.