When DNA test results shattered everything Lavinia and Michelle thought they knew about their family history, they also revealed something never before documented in the UK ...

When twins Michelle and Lavinia Osbourne took at-home DNA tests to find out their real father, they discovered something ...

Each month during a woman's menstrual cycle, an ovary prepares 10-20 antral follicles, fluid filled sacs that hold immature ...

Each month during a woman's menstrual cycle, an ovary prepares 10–20 antral follicles, fluid-filled sacs that hold immature ...

Two unrelated cases — one involving UK twins with different fathers and another involving sisters whose mother insists on secrecy — highlight the emotional and relational upheaval DNA tests can bring.

Players choose their farm size, crops, animals, equipment and inputs. Then they see the financial results. They choose their ...

Mosquitoes can smell you from 120 feet away-and they remember your taste. The science behind why they keep coming back.

The couple first revealed in February that they're expecting twins ...

Most human pregnancies result in one baby because hormone feedback quickly limits egg selection, a new study explains.

What attracts mosquitoes more reliably than blood type is carbon dioxide. Mosquito antennae can detect a CO2 trail from up to ...

A winter of record-low snowfall in much of the U.S. West means less snowmelt to feed the rivers and lakes that supply the ...