Gorgeous Cave Paintings and Sculptures from Tens of Thousands of Years Ago By Katy Waldman Human Evolution Posted Wednesday, Oct. 17, 2012, at 5:09 PM Tweet Want more of your favorite content on the MSN homepage? Try the news, sports or entertainment editons. Tweet MYSLATE Save this story. Follow all Human Evolution articles. Follow the Health and Science section. Follow stories by Katy Waldman. MySlate is a new tool that lets you track your favorite parts of Slate. You can follow authors and sections, track comment threads you're interested in, and more. Click here to load comments.