Chrysopelea

Genus of snakes

Chrysopelea, more commonly known as the flying snake or gliding snake is a genus that belongs to the family Colubridae. Flying snakes are mildly venomous, though the venom is dangerous only to their small prey. Their range is in Southeast Asia (the mainland (Vietnam, Cambodia, Thailand, Myanmar, and Laos), Indonesia, and the Philippines), southernmost China, India, and Sri Lanka.

Chrysopelea is also known by its common name "flying snake". It climbs using ridge scales along its belly, pushing against the rough bark 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, 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. The combination of forming a C shape, flattening its abdomen and making a motion of lateral undulation in the air makes it possible for the snake to glide in the air, where it also manages to save energy compared to travel on the ground and dodge earth bound predators. and the snake continuously moves in lateral undulation to create the same effect of increased air pressure underneath its arched body to glide. Their destination is mostly predicted by ballistics; however, they can exercise some in flight attitude control by "slithering" in the air. and studies continue to be made on what other, more subtle, factors contribute to their gliding. According to recent research conducted by the University of Chicago, scientists discovered a negative correlation between size and gliding ability, in which smaller flying snakes were able to glide longer distances horizontally. Scientists are hopeful that this research will lead to the design of robots that can glide in the air from one place to another.

The genus is considered mildly venomous, with a few confirmed cases of medically significant envenomation. Chrysopelea species are not included in lists of snakes considered venomous to people.

Chrysopelea are diurnal, which means they hunt during the day. Their diets are variable depending on their range, but they are known to eat lizards, rodents, frogs, birds, and bats. They are mildly venomous snakes, but their tiny, fixed rear fangs make them dangerous only to their small prey.

There are five recognized species of flying snake, found from western India to the Indonesian archipelago. Knowledge of their behavior in the wild is limited, but they are thought to be highly arboreal, rarely descending from the canopy. The smallest species reach about 2 feet (1 m) in length and the largest grow to
Image Scientific name Common Name Description Distribution Chrysopelea ornata (Shaw, 1802) Golden tree snake or ornate flying snake This is the largest species of flying snake, reaching up to four feet in length. Though it is called the golden tree snake, there are other colour variations; for example, some phases tend to lean towards lime green in colour rather than pure yellow, while in India, it has orange to red markings and small black bars on the dorsum, almost as rich in colouration as the paradise tree snake. Due to their size, their gliding ability is considered weak. South and Southeast Asia Chrysopelea paradisi (Boie and Boie, 1827) Paradise tree snakeThis flying snake species reaches up to three feet in length and is popular in the European pet trade. Their bodies are black, but covered in rich green scales. Clusters of red, orange, and yellow coloured scales in the shape of flower petals line the dorsal area from the base of the neck to the tail. This is the most well known colouration, but some specimens may exhibit fully green colouration without any bright dorsal markings. Their gliding ability is considered one of the best among the flying snakes. Southeast Asia Chrysopelea rhodopleuron (Boie, 1827) Moluccan flying snake Ambon and Sulawesi in Indonesia Chrysopelea taprobanica (Smith, 1943) Sri Lankan flying snake Sri Lanka, Peninsular India