There’s a reason why not all species can do calculus. A new model species offers insight into why. It’s not easy being smart. Oscar Wilde once lamented: “I am so clever that sometimes I don’t ...

This illustration compares the brain sizes of a variety of primates, including humans (top left) and the fossil Chilecebus (bottom middle), based on a new method (phylogenetic encephalization quotient ...

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Behold Neoepiblema acreensis, an 80-kilogram rodent related to chinchillas that lived 10 million years ago in what is now Brazil. José Ferreira and Leonardo Kerber at the Federal University of Santa ...