On a vacation to Australia, a Texas farmer meets an Aussie farmer and starts talking to him about his farm. 

The Aussie takes him to see his big wheat field, but the Texan wasn't impressed. 

"We have wheat fields that are twice as large as this one," he told the Aussie.

The Aussie farmer drives him around the ranch and shows off his big herd of cattle.

"Oh, our longhorns are at least twice as big as these," the Texan bragged.

The Aussie farmer is getting frustrated when the Texan notices a herd of kangaroos hopping across a field. 

"What on earth are those?" he asks.

The Aussie turns to him with an astonished look.  "Don't you have any grasshoppers in Texas?"