OK........
Examples - to integrate and balance the creatures spawn points in believable way, so that their interaction can take place in front of the PC
Carver Lizard - Bipedal Paired Hunters (Mates for Life), based off Clannfear texture/model, runs down prey, but also amphibious....reaction to PC is 50/50 (flee/attack), occasionally encountered with single pup in which case their aggression is increased to 100.
Skill Level - high stealth detection, combat equals LION (Levelled approp)
Their claws and fangs are prized as jewellery
Preys upon Grazer Lizards, Rats, humanoids, Marsh deer, but avoids Marsh Hogs
Grazer Lizard - Bipedal amphibious grazers. Herd, 1-6 includes Young. Spends most time in the shallows, retreating to either land or water depending upon threat. Grazes upon water vegetation. Always runs from danger
Skill Level - equal to Deer
Their meat is prized, as are their eggs, often hidden in reed beds where they graze nearby (think broken wing birds, distraction tactics to keep eggs safe)
Shocker Eel - Texture model similiar to slaughterfish from daggerfall, but thicker. Slow moving, solitary hunter. Ambush hunter, slowly drifts closer to water borne prey, that exudes an electric shock that affects an area around it, stunning critters and killing fish......its main food source
And so on, including the athletic marsh deer, belligerent Marsh Hog, elusive spotted lion, curious midge swarms, swamp rats, a small and friendly bear that could be fed and become a pet of sorts,three or four fish and others though they dont have direct models.....more details wanted?