The undisputed winner of the biggest brain of any animal species is the sperm whale (Physeter macrocephalus), with a brain weighing up to around 9 kilograms (20 pounds).Having such a big brain ...

Ants in the genus Brachymyrmex have a 1:8 brain-to-body-mass ratio. (Image credit: vinisouza128 / 500px via Getty Images) Just as absolute brain size isn't a good predictor of animal intelligence ...

Despite being the biggest whale, the blue whale does not have the biggest brain of any creature. According to the Smithsonian, the sperm whale has the largest brain to have ever existed on Earth .

Scientists have mapped an unprecedentedly large portion of the brain of a mouse. The cubic millimeter worth of brain tissue represents the largest piece of a brain we’ve ever understood to this ...

IBM has revealed the biggest artificial brain of all time, a simulation run by a 147,456-processor supercomputer. Will we ever get to truly capable artificial intelligence? PM reports from IBM's Al ...

The secret to our big brain may lie in the microbes that help the body break down food and produce energy. The findings are detailed in a study published December 2 in the journal Microbial Genomics .

Birds descended from the dinosaurs, but researchers have known relatively little about how the bird's brain took shape over millions of years. A new fossil sheds light on that mystery.

There's a big change happening in neuroscience. Researchers are taking a closer look at cells that were once dismissed as merely the glue that holds a brain together.