I found another book by John Scalzi in the library the other day. It's "Fuzzy Nation". This is a reworking of a 1962 book by H. Beam Piper, "Little Fuzzy". Both books deal with this problem: Your company is exploiting an uninhabited planet for its resources. If it turns out there is a sentient, (meaning capable of thought, etc at human rather than animal levels) population on the planet, intergalactic law says you have to get out, and the resources belong to the local population. There are local creatures, small, cute, fuzzy, who seem to be intelligent. Who will get the planet?
It's been a while since I read the Piper, so I don't recognize all the changes Scalzi made, but they are all to the better, and fairly substantial. It's a really good read, lighthearted, amusing, with lots of plot turns. Unlike the "Old Men's War" series, there is very little gore and bad language.