The NewsHour Science Unit looks at the debate over scientific research that involves transplanting human stem cells into animal brains. On the Caribbean Island of St. Kitts, these surgeons are ...

In Greek mythology, a chimera is a figure with the head of a lion, the body of a goat, and the tail of a serpent. But the concept is not entirely imaginary. Human chimeras are people who have cells ...

On Wednesday, Sen. Cindy Hyde-Smith (R-MS) blocked the Senate bill that would have protected IVF treatment on a federal level, claiming it was an issue that should be left up to the states. But she ...

Add Yahoo as a preferred source to see more of our stories on Google. I've long been a big fan of Greek mythology and all the wondrous beasts that tested, and sometimes bested, mythical heroes. One ...

The Senate narrowly rejected an amendment geared toward criminalizing participation in research that created certain chimeras, or human-animal hybrids, in expectation that the federal government could ...

Human gametes develop within the body of the resultant organism; It contains a human brain or a brain derived wholly or predominantly from human neural tissues; or It exhibits human facial features or ...

For example, is there a percent composition of human neurons incorporated into an animal’s brain that renders such a chimera human? Similarly, other stem cell technologies exist to create mice that ...

The U.S. Senate on Thursday voted along party lines to kill a Republican amendment to a technological development bill aimed at banning experiments to create “certain types of human-animal chimeras” – ...

Researchers have successfully introduced human stem cells into monkey embryos in the lab, creating short-lived hybrid organisms that could prove an important step in growing human transplant organs ...

A number of people have asked me to weigh in on the National Institutes of Health (NIH) recent announcement that they would like to lift the ban on research on animal-human chimera research. Basically ...

If there's one thing sci-fi movies have taught us over the year it's that combining one animal with another animal almost always ends badly. Scientists in China aren't trying to create mutant monsters ...