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 ...
When Jane Goodall first encountered chimpanzees using twigs as tools in 1960—something that scientists had assumed only humans could do — she wrote an excited telegram to her colleague Louis Leakey: ...
Crows do not just fly around scavenging but they also solve puzzles, make tools, remember faces and pass down knowledge across generations. Scientists now believe crows possess a level of intelligence ...