Quote:
2. This is an article about promiscuous females in the animal kingdom and the fact that the last male they usually mate with is the father of the baby. So, the more seminal fluid present, thus the more alkaline the environment, it makes it easier for the faster, smaller Y sperm to more in a higher pH environment.
This new research, published in the Journal of Theoretical Biology, shows how the last male can gain an advantage by 'parasitizing' his mate's previous partners' seminal fluid. By taking advantage of the more 'sperm friendly' environment created by those who have gone before, he can 'fast-track' his sperm to the front of the race to the egg.
"The presence of seminal fluid makes the female body a more 'sperm-friendly' place," said David Hodgson of the University of Exeter. "When the first male mates with the female, his sperm are released into a fairly hostile environment. But, by the time the last male mates, the presence of extra seminal fluid can assist the journey of his sperm to the egg."
This is why I thought more often would be best