Prehistoric Penman T-Shirts

'Honestly, do you you really think anyone will be interested in what you write every day, Blog?'

"Frankly, I can't wait until I evolve into a bird..."

"And this is our media room."

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

'I can't wait 'til hunting is googling and gathering is calling out for delivery.'

"Please! No harmonizing during ululations!"

"Admit it, we're lost."

"Look, Professor - a stegosaurus!"

"While you were working on fire, I was working on my satellite. Once we figure out how to launch it into the heavens, other inventions will follow, like phones, GPS, weather predictions. . ."

'This will be great for chase scenes.'

'I've been a nervous rex all day.'

'You realize, of course, there's a seven-day waiting period.'

Another Theory as to Why Dinosaurs became Extinct.

Kid doing cave paintings

'We need to have a shake-up!'

"Take that mammoth back. It's not 'wooly' enough."

'I made your favorite for dinner — pterodactyl nuggets!'

Herding lava back to the fire pit.

'Your 'marriage' invention sounds good, but what if it leads to a concentration of power for the central government?'

The First Cone of Shame.

"How the hell is that supposed to feed us?"

'Sorry, but we're not compatible, Jim. You keep a diary, and I blog on the Internet.'

Early on-line shopping

'Hunting and gathering doesn't sound very interesting, so I have decided to become a consultant.'

So, that's bipedalism? It doesn't look very ergonomic.

'We froze him until medical science knows how to cure spear wounds.'

"I think your going to need a business plan."

A caveman rubs two sticks together and gets a computer.

"All I'm saying is now is the time to develop the technology to deflect an asteroid."

Unfortunately, napkins hadn't been invented yet, so good ideas were quickly forgotten.

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

'The hard part will be writing the tutorial.'

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

"Your wheel idea was a huge hit, so what have you got for me this time?"

'The dawn of woman' - Ape-women dance around giant bar of chocolate.