An analysis of the bones and teeth of ancient mammoths (Mammuthus) has identified some of the microorganisms that lived in the animals’ mouths and bodies more than one million years ago. The study, ...

Lines of bacterial genome sequences are made to evolve independently by introducing high-activity insertion sequences, each simulating decades of evolution in the wild in just weeks. The genome ...

Scientists at Stanford University have discovered that DRT3, a unique defense system found in bacteria, creates DNA to protect against viral infections. DRT3 is made up of two different enzymes called ...

Techniques for analyzing DNA have advanced, enabling scientists to better understand disease outbreaks throughout history.