A few natural and unnatural animals that will fit well in a fantasy-style adventure
Giant Rat Gatherer, 12kg, hits 7/7, No Armor, Teeth, A5, F6, S1.
Very Large Cockroach Gatherer, 6kg, hits 3/7, Cloth, Claws (actually mandibulae; damage 1D-1D), A8, F3, S1.
Truely Giant Cockroach Gatherer, 50kg, hits 15/9, Battledress, Claws+1 (actually mandibulae), A7, F5, S1.
Giant Lizard Killer, 50kg, hits 20/9, Mesh, Teeth, Claws, A1, F7, S1.
Wolf Chaser, 50kg, hits 14/7, No Armor, Teeth, A:If More, F4*, S3.
Warg Chaser, 100kg, hits 21/9, Teeth+2, A:If More, F10, S3.
Tiger Pouncer, 200kg, hits 20/10, No Armor, Teeth+1 (3D damage), Claws+1, A:If Surprising, F: If Surprised, S2.
Smilodon (Saber-Toothed Cat) Pouncer, 200kg, hits 23/10, No Armor, Teeth+3 (3D damage), Claws+1, A:If Surprising, F: If Surprised, S2.
Mammoth Intermittent, 6,000kg**, hits 36/21, Cloth, Trample***, As Pike, As Cudgel (its trunk), A7, F8, S1.
Elephant Intermittent, 6,000kg**, hits 32/18, Mesh, Trample***, As Spear, As Cudgel (its trunk), A7, F8, S1.
* Natural wolves would usualy run away from humans unless the wolves arevery hungry and/or rabid. However, wolves who are actual mongerls with dogs are far less fearful of humans; for them, use F9.
** Contrary to popular belief, real Mammothes weren't much larger than contemporary elephants.
*** How would you handle a Trample attack by a mammoth or elephant? This is their strongest attack and a good way of defending itself.