During mammalian reproduction, millions of sperm undertake a journey that only one will finish. This journey to fertilization has been commonly viewed as a race: a sea of sperm competing to get to the ...

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

An international team of researchers has discovered a fundamental protein in human fertilization, called MAIA, which could lead to an improved understanding of infertility. For fertilization to be ...

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 ...

(CNN) — Talk to a group of 100 people born in the United States, and chances are two of them were born as the result of in vitro fertilization, said Dr. Zev Williams, director of the Columbia ...

This microscope image provided by Osaka University and the Research Institute of Molecular Pathology in October 2024, shows the fertilization of a mouse egg marked in red and green. DNA is marked in ...

In a proof-of-concept experiment, scientists demonstrated that you can create and fertilize human eggs in the lab using sperm ...

This insemination machine was built by the Spanish startup Overture Life. The tech firm said that this innovation is the first step towards automating IVF (in-vitro fertilization). Overture Life's ...

It's a commonly held belief: Sperm cells are like runners in an epic race, competing against each other for access to the coveted egg at the finish line. The egg, in turn, waits patiently for the ...

Researchers have created human embryos by taking nuclei from ordinary skin cells, placing them into donated eggs, and ...