Researchers found that stressed male mice's sperm could influence offspring brain development.
A fertility expert claims that up to 12 percent of women are allergic to semen.
Researchers found that the largest shark hatchlings eat the smaller and weaker ones in the wombs of their mothers.
An increasing number of women desperate to become mothers are trading sex for babies on sperm donation websites where male donors offer only "natural insemination".
It is a common complaint, among consumers and politicians unlike, that nothing is made in America anymore.
"Snowballs" pants works by keeping the male anatomy cool to maximize the chances of conceiving.
A new study may have some alarming news for couch potatoes. Men who watch television for 20 hours per week have almost half the sperm count of those who watch very little television or none at all, according to a study published on Tuesday.