To all space explorers, rogue traders and Federation colonisation and expeditionary force officers!
Thirty new alien species have been discovered. You are well-advised to inform yourselves, as to engage these entities correctly, without risk of harm to yourself or to the interests of Terra.
Ten of the described species are human in origin, yet modified to such a degree that they no longer need to be considered human.
Another ten are civilisation-building aliens competing with Terra for available space.
The final ten entries are remarkable life forms that display sapience, without using it to create civilisations. Caution is advised.
There are reports of a monster that lurks in the tops of trees and drops down on unsuspecting people. It causes them no damage but it frightens them with a hide-like face with big dead eyes, drooling and barking like a dog while unsuccessfully attempting to have intercourse. The PCs investigate and find that it is the local village moron that is doing the spelunking in the woods. How can they explain this otherwise pleasant and merry man that it is wrong to put on a mask, drop down from trees and attempt intercourse with relatives and neighbours.