Researchers found LUCA, our earliest common ancestor, lived 4.2 billion years ago. It had a complex biology, affecting its ...

from microphotography to molecular biology, with which to examine the process of development in embryos. These new tools reveal that different descendants of a common ancestor do indeed usually go ...

All life on Earth can be traced back to a Last Universal Common Ancestor, or LUCA. A study suggests that this organism likely lived on Earth only 400 million years after its formation. Further ...

What we can know about biology before the last universal common ancestor is limited—and we should be circumspect in filling in the gaps. In a world in which magical thinking persists in popular ...

Though the reason behind this action is unclear, researchers suggest socially consuming alcohol may have offered evolutionary benefits to a common ancestor of both humans and chimps ...

In this evolutionary tree, species A and B share a recent common ancestor. Species A is therefore most similar to species B. Species F and G also share a recent, common ancestor, however this ...