Giant sandwiches

"I'm hungry. I'm going to kill a moa."

He returned later that afternoon with empty hands.

"Where's the moa?"

"There aren't any. They're all dead."

"Extinct? Overhunted?"

"I fear so."

A woman looked at the sandwich she was eating. "This was the last of them then."

"That sandwich?"

"Yes."

"Already," he said mournfully, "I have forgotten what they looked like."

For hundreds of years afterwards, everyone believed that the moa had resembled sandwiches.

"Giant sandwiches."