They are 10 feet high and 30 feet long. There are four legs, no wings and three toes on each foot. Mane and wattles are shorter than those of the Chinese Lung and the distance between their legs is longer. Colouration is blue, red, green or gold with the females having feathered tails. The eggs are identical to the Lung eggs except for being half of the size and laid in boiling pools, from which the infants will emerge when fully grown. Their diet is omnivorous and their lair is typically underwater. Ryu can breathe fire but more commonly impale their prey. Ryu are also associated with Shinto and Buddhist temples, which has led to some of them being able to write.