Geological Joker Mugs

"Oh, stop it. You are not at all obtuse." Complimentary angles make the other angles feel good about themselves.

Intelligent people laugh too!

'Things have really livened up down there since You introduced SEXUAL reproduction.'

"And on the eighth day, God sat back with a scotch and soda and waited for the critical reviews."

"An un-observed universe ceases to exist. Yeah right!"

"That's an awfully large small intestine and an awfully small large intestine."

"Just for fun today we could fire some eggs around."

"Is it true Dad...is the Earth really made of bleu cheese?"

Another Theory as to Why Dinosaurs became Extinct.

The Tectonics and Their Plates.

How Glaciations Begin

"Oh boy, that was a huge belly-flop..."

Farmer chasing alien leaving crop circles.

E=Emcee Squared

'It says here that erosion moves soil from one place to another. I thought that was our job.'

'Did you check the glove compartment? -- maybe you left the keys in there.'

"When it's that old, you don't need to add 'A.D.' or 'B.C.'"

Pole Star

"So a horse has 6 legs, forelegs at the front and 2 at the back?"

"Your next pilgrimage must be to a bodega for milk."

"Ya know, that cork was there for a reason."

'I just evolved the opposable thumb, and I've already got carpal-tunnel syndrome!'

Astronaut sees cell tower on the moon.

Facial hair continental drift.

"And on the seventh day, God 'choked,' and all hell broke loose."

"I did warn you about doing that, Gorak. . ."

Climbing to the moon

"Dad, if there's a plot to the universe, can you see any spoilers?"

'If Aunt Arctica is on the bottom of the world, does that mean Uncle Artica is on top of the world?'

'Pops. How long have you been a park ranger in these caverns?'