Biology

The comb jelly, a primitive marine creature, is forcing scientists to rethink how animals got their start.

An infection sweeping through Australia’s struggling koala population provides an unprecedented opportunity to explore how retroviruses insert themselves into the genome.

Inside the cell’s nucleus, the double helix folds up in myriad loops and twists. The quest to unravel this structure is revealing the subtle genetic orchestration of all life on Earth.

A new solution to the prisoner’s dilemma, a classic game theory scenario, has created new puzzles in evolutionary biology.

Interest in a powerful DNA editing tool called CRISPR has revealed that bacteria are far more sophisticated than anyone imagined.

Disease is the result of failure somewhere along the line in a complex dance of biological components. Now statistical physicists are using enormous databases of medical records to study connections between illnesses.

Scientists have begun to decipher the most difficult-to-read parts of the genome — the parts that don’t code for proteins. The new work reveals how errors in these genetic instructions can lead to disease.

All life on Earth is made of molecules that twist in the same direction. New research reveals that this may not always have been so.

Microscopic creatures called bdelloid rotifers have thrived without mating for millions of years. How they did it could reveal why sex is so essential for almost everyone else.