The thyroid gland consists of two types of hormone-producing cells that regulate the body's metabolism and calcium balance. In mammals, these cell types merge into a single organ, whereas in other ...

Though more than 8 million babies have been born through in vitro fertilization (IVF), 70% of IVF implantations fail. As IVF is becoming a more common route to pregnancy in cases of infertility, there ...

The earliest days after fertilization, once a sperm cell meets an egg, are shrouded in scientific mystery. The process of how a humble single cell becomes an organism fascinates scientists across ...

When planning a trip, it's rare that you don't have a choice of route. One may be more direct, another more scenic; but regardless of the time or route taken, the destination is the same. This concept ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. What do the earliest stages of a pregnancy look like? Embryonic ...

Chimpanzee naive pluripotent stem cells (PSCs) can now be grown in cellular cultures, reveals a recent study. They successfully created chimpanzee early embryo models, called 'blastoids,' and found ...

Salk scientists discover how severe illness during pregnancy alters fetal epigenomes, increasing the risk for autism and neurodevelopmental disorders.

Moderate exposure to cold and heat during early pregnancy may affect fetal development as early as the first trimester, according to a new study led by the Barcelona Institute for Global Health ...