They can produce viable sperm as young as 4 months.
Men continue to produce viable sperm longer than women continue to produce viable eggs. Risks of birth defects increase with male age, however.
This is a more complex question than it seems. If the person was born an intact and functioning male, then the person probably can produce viable sperm and produce a baby. A transgendered boy who was born a girl does not have fully functioning male genitals and cannot produce offspring. There are rare conditions where gender is less clearly defined, and it is possible that some of these conditions include having naturally produced external genitalia that do not produce viable sperm.
The male gonads (testes) produce sperm cells and hormones, such as testosterone.
No, it is not possible to create a viable embryo by mixing two female eggs with sperm. An embryo can only be created by fertilizing a female egg with sperm from a male.
To produce babies
It takes about 74 days for the male body to produce sperm.
Males produce sperm from the age of puberty throughout adult life.
a gallon
produce sperm
A mature male can produce around 1,500 sperm per second.
Pollen, which is the equivalent of sperm cells.
The gonad is another name for testicle which is the part of the male body that produces testosterone and sperm.