From the moment an embryo starts to take shape, two-way communication is critical for making sure tissues and organs develop ...

Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the ...

June 4 -- WEDNESDAY, June 3 (HealthDay News) -- Using cells from pig ears and bone marrow, researchers in China generated a type of stem cell capable of developing into any type of cell in the body.

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 ...

WASHINGTON -- In a little-noticed ruling this spring, the Bush administration made it a bit easier for federally funded researchers to use embryonic stem cells that do not meet the president's strict ...

Our understanding of human placenta formation just deepened with the discovery of a gene essential to early embryonic ...

Today, a U.S. judge ruled that taxpayer dollars can, in fact, be used to support embryonic stem cell research. President Obama had lifted restrictions on federal funding in 2009 but two scientists ...

A small shift in nutrient supply has led to the development of a new method to rejuvenate stem cells. Scientists at the University of Copenhagen found that these “super stem cells” remain healthier in ...