The Centers for Disease Control and Prevention is collecting semen from hundreds of Zika-infected men to figure out how long the sexually transmitted virus lingers in the body.
Doctors have long observed odd, circular cells in semen. They resemble undeveloped sperm, but scientists have been unable to work out how or why they appear—until now.
The image of a copulating frog dressed in tight-fitting pants sounds quite silly, but it was done in the name of serious research. In fact, more than one biologist dressed up their frogs to solve the mysteries of fertilization.
Sperm are single-purposed: They're optimized to get to an egg and inseminate it. But that doesn't mean there isn't more to this cell than meets the ovum. Sperm, along with its travelling companion, semen, are surprisingly versatile and adaptable substances. Here are eight unconventional things you can do with human…
Two handfuls of walnuts. That's all it takes. Just two handfuls (around 75 grams/day), and your sperm quality will improve "in terms of concentration, vitality, movement, shape and chromosome abnormalities," according to a study recounted in the latest issue of the journal Biology of Reproduction.
A gentleman's relish is the true water of life. A nice shot of semen allows a man to pass on a genetic code through the ages, offering the closest thing to eternal life humans are ever likely to achieve. But such wonders aren't straightforward. In fact, semen is a wonderfully complex secretion, rich in evolutionary…
Imagine if giving docs a single drop of semen was all it took to keep you healthy. Your dream could soon become a reality, as the Pentagon pushes for every male soldier to hold his health, quite literally, in the palm of his hand.
A new book reveals that a member of MI6, the British spy agency, discovered during WWI that semen makes excellent invisible ink, and often deployed it in the field. The name of the man who discovered this? Mansfield Cumming.