# Cave Dinosaurs ********** Cave dinosaurs are smaller versions of their terrible cousins. The yuan-ti originally bred them as servants—more manageable servants than their full-sized cousins. Smaller than normal dinosaurs, cave dinosaurs are more maneuverable in the yuan-ti’s jungle homes as well as in the subterranean warrens in which they were created and which they prefer as their habitat. Most cave dinosaurs encountered by adventurers are the feral descendants of the yuan-ti’s domesticated stock. Like all dinosaurs, cave dinosaurs have sharp teeth, savage dispositions, a well-developed sense of territory, and a ruthless capacity to hunt. Herbivorous dinosaurs attack if startled, harassed, cornered, forced to defend their young, or “challenged” by an appraising look. ### Cave Dinosaur Mutations As products of a yuan-ti breeding program, cave dinosaurs sometimes possess strange genetic traits, the result of partially successful breeding experiments. Not all cave dinosaurs have mutations. Among populations located close to the site of the yuan-ti breeding program, mutations may be very common. In populations further removed from the direct influence of the yuan-ti, mutations may be more rare, occurring in only a small percentage of all cave dinosaurs. The table below gives random mutations for cave dinosaurs. A few mutations make a significant difference in the level of threat posed by the mutated cave dinosaur. In these instances, as noted on the table, increase the Challenge Rating of the creature appropriately. | d% | Mutation | |:------:|:---------------------------------------------------- | | 01–10 | Improved grab (with tail), constrict 1d6 + Str bonus | | 11–20 | Spell resistance 10 + HD | | 21–30 | Chameleon power (as yuan-ti) | | 31–40 | Produce acid (as yuan-ti) | | 41–50 | Poison (as yuan-ti) (+1 CR) | | 51–60 | Blind-Fight feat | | 61–65 | +6 Str | | 66–70 | +6 Con | | 71–75 | +6 Dex | | 76–80 | Resistance to electricity 20 and fire 20 | | 81–85 | Resistance to cold 20 and electricity 20 | | 86–90 | Resistance to cold 20 and fire 20 | | 91–100 | Wings, fly speed of 50 ft. (poor) (+1 CR) |