Prehistoric Humorist T-Shirts

"I always forget - is it Kirsten or Kristin?"

'Look at your father. See what happens when lift with your back instead of your legs?'

'You can't believe a word he says since he invented the subjunctive.'

"Ooh look Derek. A shooting star. Quick make a wish"

"I like the idea, but is it scaleable?"

'The hard part will be writing the tutorial.'

Hedgehog holding sign saying 'the end is nigh' as man invents the wheel.

"You really think so...that we're just too big to fail?"

"The system's down."

'Everything's a tradeoff - now that I can walk upright, I can't wiggle my ears any more.'

Prehistoric salesman in used tire lot.

"As your Chief Technology Officer it's my duty to inform you that we don't have any."

"Appetizer is almost done."

The World's First Backseat Driver: 'It's flooded! Just let it sit for a minute!'

Hunter Gatherer of the Month.

The first evidence of dinosaur accidents.

"Inventing wheel easy. Monetizing. . . that hard."

'Yea, I give away the fire. I make my money on insurance.'

'I'm telling you Dad: Walking upright and using tools is the way of the future...'

Selfie Extension Stik

"Ok, now. Everybody think fire."

"Grog understand supply and demand."

"This will be a lot more fun once somebody invents fire."

The first book signing.

"Do we HAVE to be omnivores?"

'Rocks, sticks, dirt... we've got to learn to think outside the box.'

'Confound those pesky little mammals -- we ought to find all their eggs and stomp on them!'

'It even has its own built-in home security system!'

'Investors are going to love your product diversification.'

"That is cave bear. Free range bear better ethical choice."

"Primordial soup again?"

Caveman waits for his money from a cash dispenser as behind the scenes another caveman chips away at a rock.

'Ease up on the dinosaur meat and eat more whole grains.'

"Don't bother your father right now. He's depressed."

"Yesterday, I invented the wheel... and this morning it was stolen!"