5 fun facts about evolution. The last common ancestor of all life on Earth is estimated to have existed around 4.2 billion years ago.; There are three ingredients necessary for natural selection ...

Daniel Brady Mills research primarily concerns the co-evolution of the Proterozoic biosphere (Earth’s ‘middle age,’ 2.5-0.541 billion years ago) and eukaryotic life.

The origins of life on Earth have long fascinated scientists, particularly the nature of the last universal common ancestor ...

For billions of years, life on Earth had included only microbes, and simple soft-bodied organisms. Then, within just a few tens of millions of years, a variety of complex aquatic animals appeared.

One of the key components for the evolution of life as we know it is the presence of “volatiles”: elements and compounds that can be vaporized easily at relatively low temperatures.

Earth was so cold at the time that the oceans were frozen all the way to the equator, and life only existed in the oceans and on continental shelves, study co-author Donnelly Archibald, of St ...

They’re the building rocks of life. Analysis of debris from the nearly 5 billion-year-old asteroid Bennu suggests the ingredients to life on Earth were present in the early days of our solar ...