Biology

Scientists have produced the first complete, end-to-end genome sequence of the common marmoset, creating a high-resolution genetic reference for one...

After ovulation, an egg begins a carefully timed journey through the oviduct, also known as the Fallopian tube, toward the...

Bacteria are engaged in a perpetual molecular arms race with bacteriophages, the viruses that infect them. Phages inject genetic material...

Allergic inflammation in the skin may set the stage for life-threatening reactions elsewhere in the body through a previously unrecognized...

Scientists have engineered tobacco and lettuce plants to produce myoglobin—the iron-rich protein responsible for much of meat’s red color and...

Living alongside pumas may seem like a dangerous bargain, but new research suggests that the presence of these large predators...

Dinosaurs are remembered as Earth’s giants: towering sauropods that outweighed dozens of elephants, and predators such as Tyrannosaurus rex that...

Cancer researchers have unveiled one of the most extensive collections of patient-derived tumor models ever assembled, creating a living laboratory...

A new Cochrane review has challenged several long-standing preparation techniques used immediately before embryo transfer in in vitro fertilization, finding...

A bile acid long associated with liver damage may have a much narrower—and potentially useful—side to its biological identity. In...