There are currently 18 to 19 families of snakes with approximately 2,950 different species. With so many snakes, both on land and in the sea, there is a wide variety of colors and sizes. In the ...
CHICAGO (AP) -- It's a question no one could really answer about rare ``flying'' snakes whose horizontal glide is twice the height of the trees they use as diving boards. How on Earth do they do that?