In the first weeks after fertilisation, human embryos are not as susceptible to dying as often claimed that only one in three embryos make it to the term, reveals a new study. Dr Gavin Jarvis from ...

Scientists have struggled to keep embryos alive in the lab for longer than a week because at the seven-day point an embryo must implant in the uterus in order to thrive and grow. But researchers ...

Researchers who study developing human embryos have long limited their experimentation to lab embryos that are no more than 14 days into development. Some scientists are now pushing that boundary.

How can a baby be one year younger than its mother? It may sound like a riddle, but there is no trick answer - a 26-year-old American woman has given birth to a baby girl who was frozen as an ...

So the earliest you can possibly learn that you’re pregnant is at a gestational age of “four weeks”—which means the embryo has been implanted in your uterus for only one actual week, and ...

SNEAK PEEK At 9.5 weeks of pregnancy, a human embryo is almost 16 millimeters long — about the size of a 1-cent euro coin. A new 3-D tool lets users check out (from left) the embryo’s skin ...

Single embryo transfer more effective and safer than double, says study. Dec. 21, 2010— -- Shortly after Nadya Suleman gave birth to octuplets in January 2009, the children's births went from ...