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"How long before the clinical trials are over?"

Cavewoman smacking childs bottom for doing cave drawings

'Believe it or not, this was just an empty cave until we turned it into this art gallery.'

Cave people viewing the cave drawings at gallery.

A caveman paints from life

"Their cave paintings are all landscapes and still lifes. That tells you all you need to know."

He's invented the 3-D cave painting!

'The wheel was great, but what have you done for me lately?'

"Make yourself comfortable on my new decorative throw rocks."

'This will be great for chase scenes.'

If humans instead of dinosaurs had lived when the big asteroid hit.

"I like it but does it get only the one channel?"

The First Kite

"I told you a firecracker behind his back didn't seem like a good idea!"

I'm not sure which, but he's just invented either writing or vandalism. (Published originally on Feb. 11, 2011.)

'Finish your homework first, Og... then you can watch the wall.'

"On second thought, mabe it would look better over there."

Early accounting scandals.

'It's a 'graphic novel.''

Dog and Human Archaeologists

Infographics: the early years.

"It's the usual promise to cut taxes"

Cell phones seem as if they are designed for a T-Rex!

Prehistoric Modern Art

"It would appear they worshipped the almighty dollar."

"Any chance you could do it at a higher resolution?"

This action stuff is okay, but try a romance or comedy next time.

"The subaqueous qualities of the biomorphic forms spacially undermine the larger metaphorical resonance of the mark-making."

Mammoth Posing

Cave Paintings Audio Guide

'How many times must I tell you? Stop drawing on the bloody walls!'

Political Cave Art

Art Critics.

"My doctor says you should be drawing more fruits and vegetables."

'I love what you've not done with the place.'