A remnant population of castaway humans is left to fight for survival in a biological trap of a planet where the wildlife has developed a taste for human flesh and the native food drives humans into uncontrollable rages. But on this planet, unlike Earth, the ability to turn on a "berserker" rage is a desirable trait.

Annotation

A remnant population of castaway humans is left to fight for survival in a biological trap of a planet where the wildlife has developed a taste for human flesh and the native food drives humans into uncontrollable rages. But on this planet, unlike Earth, the ability to turn on a "berserker" rage is a desirable trait. Original.