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 ...

For the first time, scientists at the Francis Crick Institute have successfully developed human stem cell models that include ...

After three long essays in the New York Times’s “Embryo Question,” the series ends with a stunning confession of complete indecision about what the human embryo is — aside from the ...

In the mouse developing embryo, she previously demonstrated a bias at the two-cell stage: one cell contributed more to fetal tissue and the other to the placenta. 4 “We know so little about the very ...

WASHINGTON (CNN) --Scientists at a technology company said Sunday they have created human embryos through cloning ... He called the development "the first, halting steps" toward a new area ...

While human embryos donated from in vitro fertilization clinics offered insights into the early development period, they are technically and ethically challenging to work with. In recent years, ...

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 ...