Crows have long fascinated scientists for their unusual problem solving skills and startling intelligence. This video explores how they use tools plan ahead and remember human faces with incredible ...
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: ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results