special valves in their heads to make sure they don't pass out after leaning over to drink water, and tongues that can be 20 inches long. But these tallest of all land mammals are in the midst of a ...

A 3-year-old giraffe named Msituni jumped her enclosure to get a nibble of a nearby mesquite tree. Reid Park Zoo A giraffe at the Reid Park Zoo in Tucson, Arizona, decided to familiarize herself w ...