The outer shell of Viranov eggs are transparent which means you can see the little creature growing inside. The creature swirls around and around extremely fast inside of the egg.
It finally happened... Ark City's underbelly of criminal scientists, the People of Free Creatures, have acquired their own set of tools that allow them to genetically engineer species, similar to that of the Science and Research Center. But while the People of Free Creatures prop themselves up on genetic uniqueness as something good, they seem to create rather unsafe creatures that become enemies of the genetically unmodified, naturally-occurring species of Ark.
So how did this creature end up at the Science and Research Center in Ark City if it was in fact not created by the Science and Research Center? Well that's a point of major controversy among Arkians: it is generally accepted and believed that the Science and Research Center in Ark City is selling this criminally-made creature because it refuses to acknowledge the People of Free Creatures as a legitimate group and would rather claim the creature for themselves.
Some say that the People hacked into the Science and Research Center's mainframe and injected their own genetic code into the creature-making machine... thus the Viranov. The Science and Research Center sells this species in the Creature Labs with the following care instructions: "Warning! This creature is very dangerous and has no specific diet or behavior regimen."