Waterhorse Dragons received their name due to their horse-like physique and endearing behavior. They are capable of surviving out of water, and when on land their skin secretes a gelatinous goo to retain moisture. However, their large paddle feet are better suited for swimming, and waterhorse dragons tend to move very awkwardly when on land. Waterhorses are very friendly dragons and enjoy playing with humans.

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.

Rivergallop loves letting people ride on his back and will also save anyone stuck out at sea. He will be cheeky sometimes though, and will attempt to nibble their fingers. His patience is large, and even if he does run out it isn't bad. He likes running around in shallow water getting everyone wet, which sometimes results in a falling out and him running off and hiding. He is very friendly and loves people, and is always trying to play with them. When no dragon wants to play with him he will swim around searching for fish to chase.