July 8 (UPI) --New analysis of hundreds of human fossils, some 1 million years old, suggests the average human body size has fluctuated as the planet's climate periodically warmed and cooled.

An increase in body and brain size is one of the defining characteristics of human evolution. However, it remains widely debated what the primary cause of this increased brain and body size may ...

Skulls: - Left: Amud 1, Neanderthal, 55.000 years ago, - Middle: Cro Magnon, Homo sapiens, 32.000 years ago - Right: Atapuerca 5, Middle Pleistocene Homo, 430.000 ...

Big bodies are good for cold places. That's the gist of a foundational rule in ecology that has been around since the mid-1800s: Animals that live in colder places tend to have larger bodies, ...

A new analysis of more than 1,500 papers and 60 types of tissue has revealed the total number of cells in the human body. When you purchase through links on our site, we may earn an affiliate ...

Max Telford does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

The human body is eerily similar to a complex machine, with countless delicate parts. These parts range from the tiniest of cells to our limbs, eyes, kidneys, and brains. These parts have slowly ...