Since we are on frogs, do you know when frogs become
deaf? Here is the story:
Sidney was a 14-year-old boy with an interest in the
sciences.
One summer day he started his own investigations. With his
12-year-old sister Sophie in tow, he caught a large bull frog in a
local pond.
Sidney started his experiment with the amphibian, and told Sophie
her job was to write down the results of the experiment.
Sidney drew a line in the sand, placed the frog on the line, and
prodded the frog with a small twig from the rear and shouted,
"Jump, frog!"
The frog jumped, and Sidney measured the distance. "12 feet...write
that down, Sophie," he said.
Next, he brought the frog back to the starting point and removed
the frog's right front leg.
Again he prodded the frog and shouted, "Jump, frog!" The frog
jumped 10 feet, and on instruction, Sophie wrote it down.
Again the frog was brought back, the left front leg was removed,
and again "Jump, frog!" Sidney reported, "Six feet...write it
down."
The next time, Sidney removed the large right back leg. "Jump,
frog!" Then, he shouted "Jump, frog!" and prodded the frog. "The
frog jumped 8 inches...writes it down, Sophie."
Finally, Sidney removed the frog's remaining back left leg, put it
down and prodded the frog with the twig shouting, "Jump, frog!
Jump, frog! JUMP FROG!! JUMP JUMP FROG!!!"
The frog didn't jump. Sophie looked at Sidney, and said, "So what
should I write down?"
Sidney thought a moment, and then told Sophie to write, "When you
remove all the legs from a frog, it turns deaf."