Why do men have millions of sperm, women have millions of eggs, when if you're only with one person for life?

Question

How many kids can you possibly have?? What is the scientific reason why men "regenerate" millions upon millions of sperm??

Answer 1

Men have so many sperm, do you think it is possibly enough?

1 ejaculation u could put out millions of sperm, but the one which reach the ovum is only few hundred.(basic biology, who doesn't know)

Women do have millions of ovum, but only about 500 of them actually develop into mature ovum.(again, b.bio)

so, what do you want to complaint?  

Answer 2

The idea is that males, who are full of SPERMS, can have s*x with as many humans of the female variety in a lifetime, thus they ensure their genetic material carries on into the next generation.

Its survival of the fittest m'lad. The more fit you are, the more you survive.

By having lots of SPERMS and lots of s*x, you can create lots of life. Life = purpose of life.

Answer 3

cos they waste so many with their right hand. sorry couldn't resist that.

Who says one woman for one man, this is western society's rules.  Men were put on this earth to impregnate as many women as possible in their lifetime.  

When a man ejaculates is a race to break through the egg - millions of sperm race towards the egg and maybe one will fertilize the egg, thus ensuring that the sperm that won the race was the fittest and strongest, ensuring a healthy child.

Answer 4

Eggs and sperm are produced by meiosis and as a result exhibit genetic variation. Since mating and fertilisation is random this provides for a great variation in the offspring which is the material that natural selection works on.

Answer 5

This helps increase the odds of successfully reproducing.  Individual sperm and eggs can carry genetic mutations that make them incapable of leading to an viable embryo.  There are also evolutionary roots to species that have large numbers of offspring at a time and/or have a new mate each time they reproduce.  See r/K selection: http://en.wikipedia.org/wiki/K-selection