Cavemen made passes at girls with big asses

A weird link from Foxnews.com to express.uk.com has a story about prehistoric drawings depicting babies with back getting adoration. From the article:

“The most popular were the cave-dwellers’ equivalents of Kylie Minogue (pictured), whose renowned behind is the world’s most popular posterior.”

What a bizarre conclusion. Who is the paying for this research? Is this just an excuse to show Kylie’s ass on your website? (It isn’t even a very good photo.)