Scientists have found what they think is the oldest fossil on Earth, a remnant of life from 3.7 billion years ago when Earth's skies were orange and its oceans green.
Thousands of insects, plants and other life forms have been found trapped in ancient amber deposits, but a new discovery shows a rarity of a different type - the one that got away.
Early life forms on Earth are likely to have mutated and evolved at much higher rates than they do today, suggests a new analysis from researchers at the University of North Carolina.
Scientists have unlocked a crucial part of the mystery as to how our DNA can replicate and repair itself - something which is essential for all life forms.
Scientists at Universidad Carlos III de Madrid (UC3M) have analyzed the process of nitrogen fixation by cyanobacteria, creating a mathematical model that reveals the patterns they form. In these patterns, approximately one ...
The hydrothermal vents and methane seeps on the ocean floor that were once thought to be geologic and biological oddities are now emerging as a major force in ocean ecosystems, marine life and global climate.
The tree of life, which depicts how life has evolved and diversified on the planet, is getting a lot more complicated.
Homing in on when life on Earth evolved from single-celled to multicellular organisms is no easy task. Organisms that old lacked many distinguishing characteristics of modern life forms, making their fossils exceptionally ...
Most modern bacteria descended from ancestors who could convert the Sun's energy to fuel more than 3.5 billion years ago.