Whether you're a frog or a human, reproduction is an occasion of cellular celebration. New research finds that in species separated by millions of years of evolution, a fertilized egg gives off a ...

A new study identifies the defective function of CatSper, an ion channel controlling calcium levels in sperm, as a common cause of seemingly unexplained male infertility. CatSper-deficient human sperm ...

In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a 'fairy tale,' rooted in ...

Since the first successful in vitro fertilization pregnancy and live birth in 1978, nearly half a million babies have been born using IVF in the United States. Assisted reproductive technology has ...

Pregnancy is often talked about as though it's a light switch. You're a regular person walking around and then a switch flips — presto, you're pregnant. The reality is more nuanced. "Sex ed really ...

Fertilization Releases 'Zinc Spark' in Vertebrates Tessa Koumoundouros Science Alert July 19, 2021 Northwestern University ...

Since the overturning of Roe v. Wade in June 2022 ended the federal right to abortion, legislative attention has extended to many other aspects of reproductive rights, including access to assisted ...