To be sure, sophisticated bone tools, such as harpoons, spear points, and awls, seem to have appeared in Africa 90,000 years ago, much earlier than in the rest of the world. This also applies to such artifacts of modern humans as personal ornaments, with recently discovered shell beads dated at 75,000 years ago.
固然，如鱼叉、矛和尖钻一类的复杂骨器似乎在9万年以前就在非洲出现了，这比世界的其它地方都要出现得早。同样的情况还有现代人用于个人装饰的器物，特别是最近发现的距今75000年前的贝壳珠链。