english: Video: Kanzi now makes his tools, just as our ancestors may have made them, two-and-a-half million years ago -- by holding the rocks in both hands, to strike one against the other.
non_english: Video: Kanzi pravi oruđe baš kao što su ih naši preci možda pravili pre dva i po miliona godina - držeći kamenje u obe ruke i udarajući jedan o drugi.