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.

A genomic study of hydrogen-producing bacteria has revealed entirely new gene clusters capable of producing large volumes of ...

Until now, it’s been very hard for scientists to establish a detailed timeline of the early evolution of bacteria.

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.

Under microscopes, scientists found that giant single-cell organisms were able to vacuum up more food when they are stuck together.