Dragons are creatures with nearly unlimited life spans. They can survive for long periods of time, and no one has found a dragon that has died of old age. Adolescence 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. Once they hit adolescence, hatchlings change quickly, maturing to their full forms in only 2 years.

Dragons don't communicate with each other verbally, but they will growl to scare off predators and frighten prey. Young dragons will emit an extremely high-pitched squeal when they are frightened. To communicate, they use telepathy with each other and to speak to other creatures.

Frilled dragons are smaller than most other breeds, but when threatened, they stretch out their wings and frills to appear larger. They generally do not like to fight and prefer hiding to confrontation. Frilled dragons live in small groups and often band together to scare off potential threats. Males also use their frills as a way to attract mates, with those displaying the "best" frills being more likely to breed.

Kubinekko's name refers to the scruff, or nape of the neck, and is a reference to his frills (albeit not a very accurate one).  He is a dragon that plays very hard at being proud and regal, but his twitchy nature makes his posturing fall flat.  Some of the other dragons have taken to calling him "the peacock."  He is a bit of a prima donna, and will try to court any female who is nearing her breeding cycle. This frequently gets him in trouble, as very few females in the cave are interested, and some of them have mates of their own that resent the interference.