jeffsonstein ("Jeff Sonstein") wrote:
"by working out the birth cycles of similar present-day animals, they deduced that the number of marks on the cave paintings was a record, by lunar month, of the animals' mating seasons."
jeffsonstein ("Jeff Sonstein") wrote:
"by working out the birth cycles of similar present-day animals, they deduced that the number of marks on the cave paintings was a record, by lunar month, of the animals' mating seasons."