Inside & Out, we go behind the scenes at the zoo to meet some of the biggest and smallest animals.

Our planet is home to some amazing creatures that come in all shapes and sizes, from the largest animals in different parts of the world, such as the blue whale, hippopotamus, and elephant, to the ...

New research shows prairie dogs play an outsized role in nutrient cycling, adding to their list of beneficial services as ecosystem engineers. Ann Batdorf, Smithsonian’s National Zoo and Conservation ...