If you’re not a biologist, the Mount Lyell shrew looks similar to other shrews that occupy the Sierra Nevada. It’s a small, grayish brown mammal with a pointy nose. Aside from its size, it’s not ...

In a laboratory in Florida, a house cat named Pepper has again been involved in the unanticipated discovery of a new virus as a result of its habit of bringing home dead mammals. This time, it was a ...

The Christmas Island shrew, a tiny mammal once found only on the Australian island of the same name, has been declared officially extinct. It’s at least the fourth small mammal species to be wiped out ...