Add Yahoo as a preferred source to see more of our stories on Google. Researchers uncover gene clues that reveal how life evolved before Earth’s first universal ancestor. (CREDIT: Wikimedia / CC BY-SA ...

Scientists explain how simple chemicals, deep sea vents, and meteor impacts may have helped life begin on Earth.

Learning about the past is usually easier than predicting the future, but deciphering the earliest history of life on Earth seems to be an exception to the rule. Of course, we're not entirely in the ...

The account of evolution we call Darwinian can explain the great diversity of life on Earth. The origin of species and the descent of human beings are well understood. Darwinism is silent on the ...

Living organisms share an ancestor called the last universal common ancestor, or LUCA. LUCA is estimated to have lived approximately four billion years ago. All plants, animals, and microbes can trace ...