The newly born sperm was receiving instructions in

The newly born sperm was receiving instructions in conception from the head sperm.

"As soon as you hear the siren, run for the tunnel and swim in a straight line until you get to the entrance of a damp cavern. At the end of the cavern you will find a red sticky ball, which is the egg. Address it and say, 'I'm a Sperm.' She will answer, 'I'm the Egg.' From that moment on, you will work together to create the embryo. Do you understand?"

The sperm nodded affirmatively and the head sperm wished him luck.

Two days later, the sperm was taking a nap when he heard the siren. He woke up immediately and ran to the tunnel. A multitude of sperm swam behind him. He knew he had to arrive first. When he was near the entrance to the cavern, he looked back and saw he was far ahead. Then he was able to swim at a slower pace until he reached the red sticky ball. When at last he reached the red sticky ball, he brightened up, smiled, and said,

"Hi, I'm a sperm."

The red sticky ball smiled and said, "Hi. I'm a tonsil.