Not a single Mount Lyell shrew had ever been photographed alive before, making them the only known mammal species in ...

Boom Supersonic XB-1 jet breaks sound barrier for the first time during historic test flight - Crowds packed Hong Kong's ...

A team of stem cell scientists have successfully used embryonic stem cell engineering to create a bi-paternal mouse -- a mouse with two male parents -- that lived until adulthood. Their results ...

The ecosystems that contain Yellowstone and Glacier National Park have populations of grizzlies that are rebounding so much ...