Did ���Cavemen��� Use a Lunar Calendar?

Most people have this view of so-called ���cavemen���: less-evolved brutes, barely able to make fire, weapons, or clothing. Thanks to the popularity of the evolutionary narrative of the slow and gradual evolution of mankind, this picture of ���cavemen��� is strongly rooted in the minds of the general public. But it���s not true!

In the news recently was yet another example of the intelligence of cave-dwellers. On the walls of certain caves are paintings of animals, but next to some of those anim...