When Water Dragons mature, they lose the ability to survive on land, entering the water permanently. They are adept swimmers and eat whatever fish are in the lake they live in. They tend to inhabit the same lake for their entire lives, although a few live in the ocean and swim all over the world.

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.

0dt4y collects statistics about the collections of herself, her mate Wzwvi, and his parents. No two collections have the same number nor type of objects. The older generation's collections match their favourite numbers. Wzwvi has the largest collection both in space taken up and number of objects. All the collections are prime numbers. The collection of favourite days of the week is the smallest collection. The collection collection has one less than twice as many as the bad ideas.

Some dragons think 0dt4y's collection factoids are a puzzle, but she says they make perfect sense without being puzzled—granted, she also believes it normal that she has a pair of fake googly eyeballs glued to her tail and swims around backwards. She claims to farm tuna (a saltwater fish) in her freshwater pond and uses them to make children nuggets, since according to her tuna are "the children of the sea". Oddly, her children nuggets seem to taste the same as any other children nuggets.