A city man went on vacation in the autumn for a color tour in the midwest. Stopping one night at a small tavern for a meal and a beer, he regaled the waitress with tales of his adventures and his amazement not only about the beautiful colors, but about how many flocks of geese he'd seen flying south for the winter.
The gray haired tavern owner came over and said, "Yup, those geese are amazing creatures."
"How do you mean?" asked the man.
"Well," the owner explained as he pulled out a chair. "That 'V' formation they fly in is something they evolved over tens of thousands of years to allow them to go further distances when they migrate."
"Really?" asked the man.
"Yup," said the owner. "The strongest flyer would take the point, and the other geese would fall in formation in his airstream to allow them to relax a bit and not have to work so hard."
"That's amazing," said the man.
"Yup," the owner went on. "And when the point man got tired, he'd fall back and another, well rested goose would take over the point."
"Wow," said the man. "I never knew that."
"And did you notice," the owner asked, "that one leg of that 'V' was always longer than the other?"
"Well now that I think about it, yes I did," said the man. "Why is that?"
"Well," the owner grinned as he got up. "It's got more geese in it."