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***-egg Fertilization
Production period, 70 days
They move 6 m to the starting line.
At the same time, 300 million charge.
Distance to the target, 18 cm
An ultimate track 3,000 times longer than their body length.
A urvival rate of 300 million to one. A merciless race
First barrier of 8 cm in length: a track as sticky as glue
A maximum speed of 3 mm per minute
A total of 27 minutes to break through the first barrier
Unavoidable competition and collision
In addition, a death rate of 90% among the participants
Second barrier of 10 cm in length
Right? Left? Where is the target?
A wrong choice will be punished by death.
A total of 40 minutes to break the second barrier
At last, the first encounter with the target
A vast object with its size a million times bigger
Among the 200 survivors, only one becomes the final winner.
Final barrier: entry
This ***-egg encounter happens
between the smallest and the biggest cell of humans.
The 18-centimeter long journey ends with fertilization.
Whether the baby becomes a male or a female
is decided by the X (female) or Y (male) chromosomes contained in the ***.