Bright-Breasted Wyverns are a breed of dragon easily recognized by their bright red markings. They are a small breed, only the size of a full-grown man. However, they have developed poisonous barbs on their feet to make up for their size. Their coloration is used to warn off potential predators of the danger, and is also used to attract mates. They are very social, and can often be seen preening in large groups.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Despite her flamboyant looks that is typical of her kind, Yavanna is actually quite shy, preferring not to draw too much attention to herself. It is possible this strange behavior developed because she wasn't actually raised by her parents, but an old pair of Stone Dragons and has picked up some of their quiet ways. As she grew older, such a secluded lifestyle ceased to suit her. The restlessness within her grew and soon she was driven to leave her loving home to seek the company of other dragons, finding her place in the growing ranks of the Durelen Clan. Patient and kind, she enjoys teaching young dragons the art of hunting and flying alongside Laputa. Every month, she and her family tend to take a few days leave to go visit her adoptive parents, who are pleased she found a place where she can be happy.