Neolithic Nerd T-Shirts

"Tracking a wildebeest and crushing its skull has made me want to get up early and invent agriculture."

"So when, exactly, did you plan on cleaning all this crap up?"

"Somehow, I feel that this site and Stonehenge are connected!"

Stoneage puncture repair kit...

'Don't ask me why but he feels a great deal of pride in calling it his 'man-cave'.'

'Yorick? No, I don't think so, unless of course he was a Neanderthal!'

The Age of Reptiles. . .

'The wheel was easy, the owner's manual is hard!'

Save the whales. . . Save the pandas. . . Save the planet.

'...so if we can save enough maybe, just maybe, next year we'll be migrating courtesy of British Airways.'

'If only Darwin could have seen this.'

"I'm sorry, but you didn't recognize me as the Messiah when I had braces and glasses."

Og invents the first 'X' box. . . and inadvertently invents the first i pad.

"I'll carve the wheels, you'll sell them, and Oog, here, can be customer service."

"I'm afraid you need knee surgery."

Pregnant Panda at Edinburgh Zoo: 'Congratulations, Wilkinshaw...'

The real reason why flamingos are pink

'I would love to be more energetic, but there is nothing I can do: It's a genetic condition...'

"Mommy, look! Tablets from olden days!"

Cliff Notes

'Damn, I knew that disabled access would be our undoing.'

'I'm tired of playing 'Rock, rock rock'.'

Why giraffes hate winter

"I'd love to go out with you. Do I have to have time to change."

'Those were the days, eh Grandpa?'

'Do you know what I miss? - Chalk talks!'

'DNA...nature's bar code.'

'Yes you have to work Earth Day.'

'One of the good things about being a dung beetle is that my kids are not fussy eaters...'

'We had seven gloriously happy years together, and then he learned how to talk.'

"You're right, I can totally see my lung."

'Would you like your dividend in pennies, nickels or bitcoin?'

"So, what are you doing after whale-watching season?"

'That's far enough for the first trip -- gather some soil samples and initiate re-entry procedures.'