The other day…By Donna Culotta Growing up, I always believed that flat rocks were for skipping across the water. Dahnell Bell ...

A painting of a kangaroo in Western Australia is the oldest known rock art in the country, according to scientists, who say radiocarbon-dating analysis shows it was created more than 17,000 years ago.

Near the southernmost tip of South America, people may have started cave painting nearly 8,200 years ago, several millennia earlier than previously suggested by ancient rock art in that area. Dating ...