The masked shrew uses special abilities, such as reducing its body size, to stay warm and resilient during the cold winter.

Common shrews are one of only a handful of mammals known to flexibly shrink and regrow their brains. This rare seasonal cycle, known as Dehnel’s phenomenon, has puzzled scientists for decades. How can ...

What can be learned from a shrew — the tiny, furry, high-strung creature that needs to eat the equivalent of its body weight in food every day to survive? More than you might expect, including ...