Ancient 'Winged Serpent' discovered as new snake species

US-based researchers have discovered a new species of snake named "Winged Serpent" that lived 5 million years ago. The snake's fossil bore broad wing-shaped projections on the sides of its vertebrae, researchers said, which were likely attachment sites for back muscles. The snake was estimated to be about 12-16 inches long, which lived in leaf litter and ate small insects.