The Dosadi Experiment

In the far future, humans and aliens have joined together in a galaxy-wide federation of intelligent species: The Consentiency, but its existence is now threatened by the discovery of a secret, illegal and deadly experiment on the planet Dosadi. There the froglike Gowachin have created a brutal society: 850 million beings, human and Gowachin, are confined in an area of 40 square kilometres. But the experiment in overcrowding is getting out of control: the beings that have bred on Dosadi are so tough and resourceful that they are capable of breaking out of their monstrous prison and overrunning the galaxy.

2012 ebook reprint edition