(same as in vanilla)
To tame a Troodon, you must let it kill your tamed creatures. The effectiveness of each creature is determined by how much XP is gained by killing them. Since XP gain scales with a creature's level, higher level creatures are more effective. Babies and adults provide the same amount of XP. To prevent your sacrifice from killing the Troodon, you can tranquilize it and/or weaken it yourself before feeding it to the Troodon, however, you cannot set it to passive.