This small mouse is now providing major insight into the origins and evolution of stem cells and how they eventually became ...

Mice are known for their small size, but the African pygmy mouse takes that trait to the extreme. Measuring 1.2 to 3.1 inches in length and weighing as little as .11 ounces, it is the world's ...

In the Andes Mountains of northern Peru, a long-tailed mammal with a “facial mask” moved through the undergrowth. Suddenly, ...

This small mouse is now providing major insight into the origins and evolution of stem cells and how they eventually became the building ... Like animals, choanoflagellates contain two ...