These Asian reptiles glide through the trees to avoid ground-based predators, using folds of skin between their ribs. These membranes spread to form wings when they're airborne, says Robert Espinoza, a biologist at California State University, Northridge.
http://www.nationalgeographic.com.au/animals/9-animals-with-misleading-names.aspx
National Geographic
Clip Category
Northridge