In this case, it was picking up bones and creating a tool, using it as a tool, which meant that apes just, sort of, running around and eating and doing each other figured out they can make things if they used a tool.
在电影中，这是指举起骨头同时创造了一个工具 把骨头当作工具使用意味着猿在某种意义上 在四处游荡，觅食和互相做爱时 已意识到他们可以使用工具来制作东西