The amphibious Aranoas inhabit shallow brackish estuaries, rivers and lagoons. Being adept swimmers, they possess tough, vibrant scales that serve to protect the dragon from superficial physical harm, and double as a means to attract mates. Their large, cavernous maws are adapted to swallowing fish whole, and they have powerful limbs to propel them through the water. When mating, males and females will typically vie for the interest of the individual with the brightest scales and the largest dorsal fin. Due to this attraction, they are also prone to collecting shiny and colorful objects that they come across. With a diet primarily comprised of large freshwater or pelagic fish, they often hunt in groups to encircle schools of fish, making for an easier meal. While not very social, Aranoas will often inhabit areas in close proximity to each other should they require assistance in hunting, or to band together to ward off other species who pose a threat to their territory.

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.

Butterflyfish (or just Butterfly, as she's called) is a lot more active and energetic than her slow, meandering mother. She is a pro angler, often going after huge schools of  fish on her family's frequent trips to the ocean. Since Threadfin makes her home in a freshwater lake, she must journey to the salty sea in order to balance her brackish levels out. It works well enough, maybe more so for Butterfly since it's how she's grown up. Butterfly also has a very, very short attention span and gets easily bored with her laid back mother. She can be a bit of a bully as well, often picking on smaller dragons when she becomes especially bored. She doesn't really pose much threat, however, since she'll usually back off the second she gets distracted by something else. Not to mention she is not especially strong or even very violent.