The 2-Million-Year Jump: The primary transition to modern human body proportions was a sudden evolutionary leap 2 to 2.5 million years ago, driven by Homo erectus/ergaster and Homo rudolfensis, rather ...

Samson has a fairly straightforward explanation for why humans sleepwalk while a sleeping gorilla in the tree stays put.

A new study constructs the first 3D single-cell brain atlas of the lamprey, uncovering the 450-million-year-old molecular blueprint of vertebrates.

Learn how fossils show human ancestors did not grow bigger in a straight line, but split into larger and smaller evolutionary ...

The biggest jump in body size among our ancestors happened around 2–2.5 million years ago, with the appearance of Homo rudolfensis or Homo erectus/ergaster, rather than gradually across the whole ...

Humans and great apes have been giggling in similar ways since branching off the evolutionary tree, a new study suggests.

Somewhere between 2% and 19% of the genetic ancestry carried by present-day West African populations traces back to an ...

A century after one of developmental biology’s most influential experiments, researchers have revisited the concept of the embryonic “organizer” in one of the oldest animal lineages alive today.

Scientists studied the remains of a mysterious human relative called Homo naledi found deep in a South African cave and ...

DNA from ancient humans has been found on a prehistoric cave painting and on cave walls, demonstrating the potential to one ...