Researchers have traced how sperm rapidly shift from a dormant to an energy-charged state during their journey to fertilize ...

An uncovered mechanism that helps sperm reach and fertilize an egg could inspire non-hormonal contraception for men and women ...

When I finally decided to go on the pill, on my own terms, everything changed. From clearer skin to a newfound sense of ...

Natural Cycles is bringing an important new feature to its millions of users.

The town of Marana wants to tighten the leash on dog owners by closing loopholes in its animal-control provisions. Town prosecutor Jane Fairall said the language in the town's leashing ordinance has ...