Some researchers examined prehistoric fossils and some tweaked the question a little bit, but everyone came upon the same answer.

Hence, they can only attain a certain height no matter how much they try. However, it is often said that some foods can help ...

Embryo models are getting remarkably realistic.The little clump of cells looked almost like a human embryo. Created from stem cells, without eggs, sperm, or a womb, the embryo model had a yolk sac ...

Chinese and U.S. scientists have taken a big step forward developing human-monkey chimeras that could transform how scientists study disease.

Researchers evaluate post-implantation development in humans using embryo-like models based on genetically unmodified human naïve embryonic stem cells.

Scientists in Israel have created a model of a human embryo from stem cells in the laboratory, without using sperm, eggs or a womb, offering a unique glimpse into the early stages of embryonic ...

Bangkok — Scientists have developed human embryo-like structures without using sperm, an egg or fertilization, offering hope for research on miscarriage and birth defects but also raising fresh ...

The most advanced lab-made human embryo models look like the real thing — they resemble, though don't perfectly replicate, natural embryos about 14 days into development.

A team of scientists in Israel say they’ve created a completely human-like embryo model without the need for a sperm or egg, up through 14 days of development.

In a scientific breakthrough that raises a number of ethical issues, researchers have used stem cells to create living, growing models of a human embryo.

An international group of scientists argue that recent advances justify a new definition for the human embryo.