Flying snakes or gliding snakes are mildly venomous, though the venom is dangerous only to their small prey. Their range is in Southeast Asia.
It climbs using ridge scales along its belly, pushing against rough bark surface of tree trunks, allowing it to move vertically up a tree. Upon reaching the end of a branch, the snake continues moving until its tail dangles from the end of the branch. It then makes a J-shape bend, leans forward to select the level of inclination it wishes to use to control its glide path, as well as selecting a desired landing area. Once it decides on a destination, it propels itself by thrusting its body up and away from the tree, sucking in its abdomen and flaring out its ribs to turn its body into a “pseudo concave wing”, all the while making a continual serpentine motion of lateral undulation parallel to the ground to stabilise its direction in midair in order to land safely.
Flying snakes are able to glide better than flying squirrels and other gliding mammals, despite the lack of limbs, wings, or any other wing-like projections, gliding through the forest and jungle it inhabits with the distance being as great as 100 m. Their destination is mostly predicted by ballistics. However, they can exercise some in-flight attitude control by “slithering” in the air.
The species is considered mildly venomous, with a few confirmed cases of medically significant envenomation. Flying snakes are diurnal, which means they hunt during the day. They prey upon lizards, rodents, frogs, birds and bats.