For over a century, scientists have wrestled with one of biology’s most fundamental mysteries: how the first animals evolved.

Fossilized tracks from an early reptile are now the oldest known reptilian tracks, meaning the tetrapod ancestor most likely ...

Echidnas and the semi-aquatic platypus are believed to have evolved from a common ancestor called Kryoryctes cadburyi that ...

This is the Last Universal Common Ancestor, or LUCA. In the most extensive analysis of the organism to date, scientists propose in a new study that this hypothesized ancestor was more ...

If you follow any two branches back through time, you'll hit an intersection. That's the common ancestor of those two species. For example, the common ancestor of humans and chimps lived less than ...

Understanding the origin of the building block of all animal and plant life may lead to more insights about life on Earth and ...

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 ...

An international team has reconstructed the genome organization of the earliest common ancestor of all mammals. The reconstructed ancestral genome could help in understanding the evolution of mammals ...

Among the most well-known brachycephalic dogs are pugs and French Bulldogs, while Persians and exotic shorthairs are among ...

All blue-eyed individuals living today are necessarily descended from one individual. Such a framing must be weighed against the fact that every single human alive today is likely descended from ...