4 ms·
The sperm race isn't 50/50 either. The y-sperm is slightly lighter than the x-sperm and thus slightly faster. On the other hand, women tend to live longer.
by jeroen 17y ago
The sperm race isn't 50/50 either. The y-sperm is slightly lighter than the x-sperm and thus slightly faster. On the other hand, women tend to live longer.