Jump Frog Jump

A biologist was interested in studying how far bullfrogs can jump. He brought a bullfrog into his laboratory, set it down, and commanded:

- Jump, frog, jump!

The frog jumped across the room.

The biologist measured the distance, then noted in his journal:

- Frog with four legs jumped eight feet.

Then he cut the frog's front legs off. Again he ordered:

- Jump, frog, jump!

The frog struggled a moment, then jumped a few feet.

After measuring the distance, the biologist noted in his journal:

- Frog with two legs jumped three feet.

Next, the biologist cut off the frog's back legs. Once more, he shouted:

- Jump, frog, jump!

The frog just lay there.

- Jump, frog, jump! - the biologist repeated.

Nothing.

The biologist noted in his journal:

- Frog with no legs - lost its hearing.