For nearly 30 years, a landmark study shaped how scientists understood the relationship between brain and body size in ...

A new study has uncovered a fundamental link between brain size and offspring size, helping to solve a long-standing evolutionary puzzle: Why do birds lay such disproportionately large eggs?

Octopuses, squid and cuttlefish may have evolved large brains because of the challenges posed by their environments rather ...

New research shows how the Eurasian common shrew (Sorex araneus) changes its brain and bodily size throughout the year. The study, published online in eLife, reveals how changes in gene expression ...

Scientists have long tried to understand the human brain by comparing it to other primates. Researchers are still trying to understand what makes our brain different to our closest relatives. Our ...

Brain scientists have long debated when, and how strongly, sex starts to shape the human brain. A growing body of imaging work now points to a clear answer: measurable differences in brain size and ...