Even though almost all primates today give birth to one baby, our most recent common ancestor, located in North America around 60 million years ago, probably gave birth to twins as the standard.

To help clarify this logic, think about the relationships within human families. The most recent common ancestors of both you and your siblings are your parents; the most recent common ancestors ...

New research shows that all blue-eyed people share a common ancestor. This person lived more than 6,000 years ago and carried a genetic mutation that has now spread across the world. The exact ...

By comparing the differences in their DNA, the researchers could work out how many mutations must have occurred since their most recent common ancestor. Dividing that number by the rate of ...

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 ...

According to recent studies by the PanAsia SNP Project, the most recent common ancestors of Asians arrived first in India (olive green). Later, some of them migrated to Thailand, and South to the ...

New research shows that all blue-eyed people share a common ancestor. This person lived more than 6,000 years ago and carried a genetic mutation that has now spread across the world. The exact ...