2018-03-23 10:03:11 UTC
In one of the companies which made such creatures, someone lied to his superiors about what he was building. He made the creature able to fly. He made the creature smarter than he should - and it was his bad luck that he made the creature smarter than he knew. The creature was smarter than humans - and had all the lethal physicality necessary to compete in the arena. Worst of all, he did something which the author never quite explained - he mad the monster able to reproduce itself. Naturally, the creature escaped from the arena.
I don't remember either the name of the book or the author.