genetics

(Newser) - A new kind of twin has been discovered, neither strictly identical nor fraternal. Now toddlers, the babies look identical but one is anatomically male while the other has ambiguous genitalia. Genetic tests show the children are identical on their mother's side but share only half their father's DNA.

(Newser) - In a cost-cutting move, NASA is shutting down its futuristic think tank, source of way-ahead-of-the-curve ideas, many of them worthy of a Star Trek script. Closing the Institute for Advanced Concepts will save $4 million out of NASA’s $16 billion dollar budget. But former NASA scientist Keith Cowing describes...