Gut Microbes may have helped fuel the evolution of large human brains, shaping brain metabolism and gene activity, new ...

Longer thumbs mean bigger brains, scientists have found—revealing how human hands and minds evolved together. Researchers studied 94 different primate species, including fossils and living animals, to ...

The first hint of a brain developed on Earth around 600 million years ago, and now, some version of the organ can be found in nearly every animal in the world. Humans have the largest brain size ...

It wasn’t the size of human brains that distinguished people from apes, he theorized, but the way they were organized. He found a creative way to prove it. By Adam Nossiter Ralph Holloway, an ...