In the years before the advent of arcanotechnology and dimensional fatigue events, teratology was the study of abnormalities and biological deformations. In the wake of the second renaissance, it became the study of exomorphs, extradimensional entities, and most prominently, teratomorphs, more commonly and vulgarly known as kaiju.
Also known as Kaiju Spawn, Magna-parasites, angel-spawn, sin spawn, and a variety of other terms
Also known as "The Ravager," Chimera Prototype Mk-XXIII is an example of man's hubris. What was supposed to benefit the last bastions of wealth and power in a dying world has become an unstoppable force of destruction.
While technically alive, magnagogs have little in the way of personality and are driven via telepathic command.
The Qualm is a giant mass of tentacles and leaves with hundreds of mouth-like pods lined with teeth. It is about 1/8 of the size of Earth's moon, and it travels through space looking for nutrient rich planets that it can suck dry.
Actually a real-world fungus, just heard about it. A fungus that tastes well and all, no ill effects. UNLESS you consume some beverage, even 3 (three) days after eating it. Then you become really sick, pains, vomiting, all the fancy stuff. Was really used to cure alcoholism. May be a joke or to make sure the heroes spend their time focused on the mission.