This phenomenon is not unique to humans. In many species of mammals and birds, females prefer warm places whereas males prefer cooler temps.

These sperm were successfully used to produce healthy, fertile offspring.

Scientists may have solved the mystery of why some twins are identical and could pave the way for the treatment of congenital disorders.

For species that rely on sexual reproduction, offspring can only happen if sperm from the male fertilize eggs from the female.

Scientists are using the precision targeting of monoclonal antibodies for a new type of non-hormonal female contraception.

Researchers from UCLA, Cedars-Sinai develop blood test todetect risk of serious complications during pregnancy.

Women have several choices for long-lasting, reversible contraceptives, but for men, options are either single-use or difficult to reverse