To conceive a pregnancy within the body, sperm (cells produced by the male reproductive system) must travel through the vagina and into the fallopian tubes to fertilize a mature egg. During puberty, ...

Their analysis of male reproductive behavior reveals new findings. The rare males actively mated with females, just like typical males. However, genetic analysis confirmed that no male-derived ...

Men and women's reproductive systems can be affected by a number of conditions. Take control of your health by understanding the important issues that may have you concerned.

Reproductive biology involves the scientific study of the reproductive system. Improved understanding of reproductive biology can lead to new treatments for reproductive disorders, such as ...

A protein that restricts muscle growth also has an unexpected role in the reproductive system, studies 1 in rodents ... researchers inhibited myostatin in male rats, suggesting that the link ...

For the male genetic materials to reach and fertilize the egg, spermatozoa must contend with numerous environmental changes in a complex and highly sophisticated process from generation in the testis, ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

The executive order declares there are only "two sexes, male and female" and defines a "female" as "a person belonging, at conception, to the sex that produces the large reproductive cell." ...

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The study presents compelling evidence that the melanocortin system originating in the arcuate nucleus of the hypothalamus plays a crucial role in puberty onset, representing a significant advance in ...

The act prohibits physically obstructing or using the threat of force to intimidate or interfere with a person seeking reproductive health services, and prohibits damaging property at abortion clinics ...