Scientists are exploring ways to mimic the origins of human life without two fundamental components: sperm and egg. They are coaxing clusters of stem cells – programmable cells that can transform into ...

Some of the most ancient fossils collected to date were traced back to the Ediacaran period. This is the time interval ranging from around 635 to 541 million years ago, shortly before the time when ...

Researchers reveal that the guinea pig pre-implantation embryo is very similar to the human embryo, spurring a better understanding of infertility and early human development. CRCHUM researcher Sophie ...

LONDON (Reuters) - Creating hybrid human/animal embryos to help develop new treatments for disease would not be illegal in Britain but should be put to a public debate, a regulatory body said on ...

LONDON (Reuters) - British regulators granted two licenses on Thursday to conduct controversial experiments using hybrid human-animal embryos, paving the way for further stem cell research into ...

A new medical breakthrough with embryo transfer offers hope for Africa’s northern white rhinos—there are only two left. This 70-day-old male southern white rhino fetus was the result of the first ...

The first few days of a human embryo’s development, known as pre-implantation, are important. It’s when the first cells are formed, and these decide if the embryo can survive, how it will implant in ...