A Las Vegas sexual assault survivor is grateful a judge declared him his brother’s legal father, but questions remain about whether or not he is biologically the boy’s dad.

A new study in fruit flies describes how an animal's gut reacts differently to beneficial microbes versus harmful pathogens.

The world's oldest DNA comes from a 2.4 million-year-old ecosystem in Greenland. Will scientists eventually sequence even older DNA?

When a woman becomes pregnant, the outcome of that pregnancy depends on many things - including a crucial event that happened ...

When a woman becomes pregnant, the outcome of that pregnancy depends on many things - including a crucial event that happened ...

Human fertility hinges on a delicate molecular ballet that begins even before birth. UC Davis researchers have uncovered how special protein networks safeguard chromosomes as eggs and sperm form, ...

When a woman becomes pregnant, the outcome of that pregnancy depends on many things—including a crucial event that happened while she was still growing inside her own mother's womb. It depends on the ...

Carriers of Robertsonian chromosomes are often unaware they’re different. Although generally healthy, they can be infertile ...