At the bottom of mines or beneath the ocean floor, drillings reveal the presence of vast communities of microorganisms in the subsurface of our planet. Scientists believe this could be due to natural...
Although it was named a mere twenty years ago, the last common ancestor of all living organisms on Earth is more than three billion years old. And scientists have an ever-better idea of what it may...
Revealed by metagenomics, previously unknown biodiversity brings our biological understanding into question. “Biological dark matter” may provide clues to a fourth domain of life.