Much like guided missiles that sense the heat of a plane's engine, sperm are guided to the fertilization site by temperature, reports a Weizmann Institute study published in the current issue of ...

Scientists are developing a new way to help infertile women have babies. A mature cell from the woman's body is merged with a chromosome-free egg, to which sperm is later added. The scientists insist ...

For a sperm produced in the testis of a man to fertilize a woman’s egg, the sperm must first mature in a man’s epididymis, a duct that helps to transport and store sperm. However, the exact mechanisms ...

WASHINGTON D.C., Feb. 28, 2016 -- The development of every animal in the history of the world began with a simple step: the fusion of a spermatozoon (the male gamete) with an oocyte, or egg (the ...

Fertilization occurs in the fallopian tubes. The fertilized egg may then implant on the wall of the uterus, leading to pregnancy. There are many misconceptions about fertilization and pregnancy. While ...