Golden jackal
The golden jackal is similar to the gray wolf but is distinguished by its smaller size, lighter weight, more elongated torso, less-prominent forehead, shorter legs and tail, and a muzzle that is narrower and more pointed. The legs are long in relation to its body, and the feet are slender with small pads. Males measure in body length and females . Males weigh and females weigh . The shoulder height is for both. In comparison, the smallest wolf is the Arabian wolf ("Canis lupus arabs"), which weighs on average .
Bazil Broketail
There are four main types of Wyvern: Leatherback, Hard Green, Gristle, and Brasshide. The Leatherbacks are medium sized dragons, usually weighing around two tons and standing 10–12 feet tall. They are the perfect mixture of strength and speed, and are of a medium intelligence. Leatherbacks of note include Bazil himself, Jumble, Weft, Fury, and Cham. Hard Greens are about the same size and weight as Leatherbacks, but distinguished by harder scaleplates and often high strung temperament. Greens mentioned are Gryff, Anther, Smilgax of Troat, and Hexarion. A sub-breed, Freemartins, are female dragons who were born sterile, and can presumably be of any breed, although the only identified Freemartins (Nesessitas and Alsebra) are both Greens. A third Freemartin named Zed Dek is mentioned, but not identified. Freemartins are generally faster and smarter than other types. Their sterility makes them unable to "fertilize the eggs" as the dragons express it. Gristles are almost non existent in the series (no named character is a Gristle), and the breed is rarely mentioned beyond the first book. The only clue as to their appearance is that they are "hard and angular". The brasshides are the largest of the dragons, weighing in well over two tons. They are slow, ponderous, and deliberate, in both thought and deed. However, with the exception of larger, wild, winged dragons, like the Purple Green, they are easily the strongest of dragons. Well known Brasshides include Chektor, Rusp, Churn, Kepabar, and Burthong. Crullos, a type of brasshide light purple in color also exist, but are rare, (only one, named Vaunce, is mentioned). Dragons cannot see the color purple, and refer to Crullos as "blue".