Tiny mammals don’t get much attention next to elephants or whales, but their size gives them a surprising edge. These animals can squeeze into impossible places, survive on scraps, and avoid detection ...

A diminutive mouse’s bizarre method of determining its offspring’s sex could reveal one way in which genetics drives evolution 1. In most mammals, the mother bestows an X chromosome on each offspring.

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 ...