Some of the roaming plents living within the Ovi-Hydro-Nuke Rainforest happened to, just by chance, notice the cavehogs returning to their homes within the Raptor Limestone Caves, and a few of these small bearhogs were actually foolhardy enough to give pursuit. Although not all of these successfully caught this prey, some did, and over several hundred years, a new offshoot was born, who chose to live within these caves to better hunt the poor, slow-running cavehogs.
Over their period of evolutionary time, they have evolved a few ways to combat these omnivorous foes that they call lunch. Visually the Raptorian bearhogs have camouflaged their wingleaves to slightly resemble the leaves of the cave orbitree; although this camouflage is certainly far from perfect, it may be good enough in the shadows to catch prey off-guard. However, since cavehogs have adapted excellent olfactory glands, these descendants of the roaming plents have also begun to mask their scent, and now produce pheromones that are very similar to those produced by the cave orbitrees that they attempt to mimic. Their eyes have become significantly larger to take in more light, while their barbels have become more sensitive, to help it detect the approach of its prey; at this detection, the Raptorian bearhogs will stop moving and become silent, waiting for the Cavehogs to get close enough to attack it.
At the same time, they have adapted to produce a low-level hum from their posterior ventilation shafts, in effect giving off white noise, which they use during mating seasons to mask the sounds of their footfalls and attract others of their own kind. They have lost much of their darker markings because they now use the white noises for their mating purposes.
Its tail has also become bulbous in order to try and imitate the head of the cave orbitree, with the "floral axles" only extending along in a doubled path from the ventral side to the dorsal side, as the others would be unneeded since it would only be visible as a silhouette, anyways. One of the "floral axles" is actually the siphon leading into the posterior ventilation shaft/butt-nostril, and is distinguishable from the others by residing in the middle between the other false axles.
They now attempt to gore their prey with the hardened horn-like protrusion on their face. They will usually eat cavehogs for as much of their diet as possible, but will certainly feed off of any plants they can locate and properly consume. Because their main prey is smaller than them, they have had no real need to grow larger, and have therefore stayed the same size as their ancestor. They also continue to possess their autotrophic habits, because cave orbitrees grow in areas with light.