Wikipedia
The Zn'rx are a fictional extraterrestrial race who have appeared in many Marvel Comics. Unpronounceable by human tongues, the Zn'rx are known better as " Snarks" among Earth's superheroes because they were nicknamed that way by a Kymellian called Whitey, who named them after the monster in Lewis Carroll's poem " The Hunting of the Snark". They first appeared in Power Pack #1 (1984).
The Zn'rx are a bipedal reptilian race with a digitigrade leg structure. They are intelligent and have interstellar travel technology. However, they are also a warlike race by tradition.
The Zn'rx are divided into many clans, but all of them are ruled by an Emperor. The Emperor is married to the female rulers of each clan. Upon the death of the Emperor, the clans fight wars against each other; the son of the Queen of the winning clan becomes the next Emperor.
The Zn'rx were first seen in the Marvel Universe when they came to Earth to kidnap James and Margaret Power and steal a powerful matter/anti-matter formula and converter Dr. Power had created. The plans were thwarted through the combined efforts of Whitey and the four Power children, Alex, Julie, Jack and Katie, in their first mission as the superhero team Power Pack.
Zn'rx is used for both the singular and the plural; it also is the name of the Zn'rx's home planet. In English, the planet is referred to as "Snarkworld."