Grouse mouse

A grouse mouse is a mammal found within the Northern Deserts most remote areas, mostly among the remnants of the Fortessa Kingdom.
They are large rodents, often growing to reach humans to the navel. They have long bottle-noses, which allows it to reach into small cracks and crevices, and a mouth stretching across most of the nose; the mouth is filled with sharp teeth, the front ones also having hooked shapes on the insides that allow them to more easily grab and tear into their prey. The grouse mouse's name froms from the bone bulbs that grows along the entirety of its long tail. It has very strong hind-legs, and it can jump and sprint far and high with them, though it it were to run it's slow. On its stomach it has a pouch, in which its offspring can rest and it can store things. Its hearing is the best of its senses, while its sight is the least developed. They have excellent lung capacity and can stay beneath the sand for hours at a time by closing their nostrils.
The tail can be used as a weapon, that can be swung to bash in skulls and the like with, and it's not uncommon for the grouse mouse to bludgeon its prey before it grabs it and jumps high, to drop the prey to the ground from the peak height.
The grouse mouse is a carnivorous creature, that is a skilled, and undiscriminating, hunter. It doesn't care what they hunt; its poor sight doesn't allow it to easily determine what they see, only that it's something that moves. If it doesn't smell its own scent on what they see, they are more often than not likely to attack, unless they are not hungry nor have any food stored in the sand pits that they bury near their burrowing holes. It can survive on very little fluid, mostly managing on blood.
The grouse mouse have litters of three to five offspring at a time, once every year at most. Its gestation period is seven months long, and the offspring come out able to walk fairly quickly after birth, though it takes a few weeks up to a couple months for it to be able to leap with no issues. The parents both hunt for the babies, taking turns watching them while the other is hunting. The parents chew the babies' food and mix it with their saliva to turn it into a mush, which it regurgitates directly into the babies' mouths.