Some mammals hibernate to survive in winter, but the Eurasian common shrew (Sorex araneus) employs Dehnel's phenomenon to get ...

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 ...

The common shrew looks unremarkable, a few grams of fur and teeth scurrying under leaf litter. Yet this tiny mammal performs one of the strangest tricks in biology, shrinking its own brain and skull ...

A mammal that weighs about as much as a sugar cube sounds like a myth, right? Well, it might’ve been one, until a tiny new shrew species was discovered in the Ethiopian highlands. Named after an ...

Last autumn, I was canoeing in a quiet saltwater cove on the Maine coast when I realized I had a tiny stowaway onboard. A masked shrew (Sorex cinereus, also called the cinereus or common shrew) was ...