From 2speccers2tools wiki

The Dingus Desert is a harsh environment for any species trying to live there, with most of the local flora being the tough pissflora which is pretty inedible for most herbivores. Some populations of Liserlap, however, would begin to move into the desert to take advantage of an absence of competition and a reduced number of predators. To live in such a harsh landscape, these populations would develop a multitude of adaptations that led to them giving rise to the Raddaxx. The Raddaxx’s long limbs meant they had a large stride, which thus meant they could cover long distances in search of whatever vegetation they could find and eat. While their ancestors walked only on the singular hoof on each foot, the toe of the Raddaxx has developed a large pad for stability as the taxon walks on loose sand. Their long anus-tail provides stability on precarious terrain and has become thicker at the base to provide a source of energy in case food becomes scarce. The tiny remnants of their ancestor’s radiation organ provided no purpose and only created unnecessary heat which made it detrimental, so the Raddaxx has lost the organ entirely. The many folds of skin and their large sail all serve the purpose of being extra surface area for heat to escape from and thus prevent the Raddaxx from overheating during particularly hot hours in the day. This is partially mitigated by their larger size compared to their ancestor to house a larger gut to extract as much nutrients as they can from the flora they consume, but it's minor enough that it is not too much of a problem. In terms of feeding habits, the Raddaxx will feed on the vast majority of desert flora, only ignoring the toughest of the local pissflora which helps them avoid competition with the Piss-Chomping Turdle which also lives in the area. The derived grinding systems of the Raddaxx that are inherited from their ancestor help with processing flora as best they can, with their throat’s strong muscles still being capable of compressing the throat inwards and upwards so it can act like a “tongue” with the large grinding plates on said “tongue” helping to grind their food into a pulp to make extracting energy easier than swallowing bits of flora whole. The Raddaxx has also developed a flexible upper-lip that is not too different from a trunk, allowing the Raddaxx to better manipulate whatever flora they come across to then feed on. The structure also provides a larger surface area for heat to escape from, much like their numerous skinfolds and dewlaps. To help keep sand out of their eyes and their spiracles, the Raddaxx has developed small spines that help shelter these structures. The Raddaxx lives in small herds, which will head out to the edges of the desert when the rains arrive, to take advantage of the abundant fresh growth provided by newly emerging Springpour Nomherbs. The abundance of food also incites the breeding habits of the Raddaxx, which will use their brightly colored sail and tall osteoderms for courtship. The Raddaxx still utilize sexual reproduction, only doing so during the abundance of Springpour Nomherbs after seasonal rains so the produced young have an abundance of vegetation to feed upon. The way they breed has not changed at all though, with two individuals budding next to each other that then merge together and exchange genes. Then, the Raddaxx pair also irradiates the buds to help further mix up their genes. Then, the merged bud would split into 4 genetically distinct offspring. This allows the Raddaxx to quickly adapt to any changes in their environment, such as an unusually long drought or extra heavy rains resulting in abundant flora growth.