DNA

(Newser) - Irish and American scientists, using new techniques, confirmed that a female hammerhead shark at the Henry Doorly Zoo in Nebraska gave birth to a pup in 2001— without having sex. A male tiger shark was suspected to be the father at first, but the team's genetic analysis shows no sign...

(Newser) -  Daniellyn finally has a baby daddy. DNA evidence proved that the daughter of the late Anna Nicole Smith can call paparazzo Larry Birkhead Dad. "I told you so," a jubilant Birkhead told reporters after the announcement at a court hearing in the Bahamas. He  hugged his rival,...

(Newser) - Thousands of new citizens asked to take DNA tests in order to verify the immigration status of relatives back home are discovering unwelcome surprises about their families, the New York Times reports. The State Department recommends the tests to confirm family ties in countries where record-keeping is poor. But an...

(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.