Viruses attack nearly every living organism on Earth. To do so, they rely on highly specialized proteins that recognize and ...

Scientists estimate that the earliest biological entities began to appear on Earth more than 4 billion years ago. "There was a sort of primordial soup from which certain organic molecules were formed.

New research shows how surface material and temperature change how long viruses survive and whether they can still spread.

Scientists generally agree that eukaryotes, the domain of life whose cells contain nuclei and that includes almost all multicellular organisms, originated from a process involving the symbiotic union ...