One thing geology teaches us about is the existence of another monumental event in the history of Earth, 2.4 billion years ...

In evolutionary terms, fitness is defined as an organism's ability to survive and reproduce its genes into the next ...

Scientists have helped to construct a detailed timeline for bacterial evolution, suggesting some bacteria used oxygen long before evolving the ability to produce it through photosynthesis.

In a lab at Queen Mary University of London, a mouse was born whose existence defied conventional biology. It carried within ...

An international team has sequenced the first ancient genomes from the so-called Green Sahara, a period when the largest desert in the world temporarily turned into a humid savanna-like environment.