The trunked hoofbear split from its ancestor the wetland hoofbear. It has specialized in eating the "shroom" of Slarti Swamp. Its trunk helps pick off the "shrooms" from the ground. It also has developed larger claws in front to help dig in the soil. Its leaves have also gotten bigger and can absorb more sunlight. While it can swim it stays mostly on the river banks. Their "butt-nostril" can close up when in the water.
Its coloring resembles that of its ancestor's swamp subspecies. Unlike its ancestor it lives in small herds of 5 to 10 and will comb the riverbanks looking for "shrooms". Each herd consist of females and their offspring. Males live by themselves but will fight over the right to mate with females in the early spring. Males fight by biting and jabbing each other with their back legs. After mating, the male immediately leaves the female to raise its baby.