Add Yahoo as a preferred source to see more of our stories on Google. Humans are tiny, yet sometimes the world reminds us how enormous or minuscule everything else really is. Gigantic machines, ...

It takes a huge amount of energy for human brains to grow to their current large size and be maintained over time. Our early human ancestors evolved to grow bigger brains, but the biological changes ...

Humans evolved large brains and flat faces at a surprisingly rapid pace compared to other apes, likely reflecting the evolutionary advantages of these traits, finds a new analysis of ape skulls by UCL ...

Microbes supporting the production of more metabolic energy could be key to the evolution of large brains First study to show gut microbes from different animal species shape variations in their ...