Black Capped Teimarr are a small and sociable breed of dragon with an appetite for seafood. They can commonly be seen flitting around sand dunes and tidal marshes, searching for crabs and other aquatic invertebrates, or cavorting in tidal pools in hopes of finding landlocked fish. Because of their large wing-to-body size, they are excellent long distance fliers and are known to migrate hundreds of miles along coastlines, or even across open sea to outlying islands in search of seasonal delicacies such as bird eggs, fledglings and schooling bait fish. The males are easily distinguished by their large jousting horns and their extendable neck frill, which they show off to the females through enthusiastic head bobbing.

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.

Crossing the Streams takes a great adoration to lobsters, and keeps many of the large crustaceans inside her small seaside cavern. She owns many different species of many different shapes and sizes, just as long as they are lobsters. She even names every single one of them and manages to keep up with them well, never confusing one of her lobsters for another. While she doesn't know of any other dragons with this peculiar hobby, she takes great pleasure in it anyway, and likes to breed lobsters with only the most beautiful lineages in case she someday comes across a lobster-trader. She is disgusted that many humans enjoy eating her lovely creatures, and has founded her own unsuccessful movement to treat sea creatures better (no one has told her that she's a hypocrite, considering she eats fish, crabs, and other seafood that aren't lobsters.).