Wallahopper

The wallahopper split from it's ancestor. After the devastating meteor impact that wiped out everything that was over a meter, the river tailhopper quickly took over the empty niches in the Flisch wetlands. It has grown nearly half it's size, making it just a medium-sized herbivore. It's arms have elongated and have become legs because of it. Also because of it, it now walks like a kangaroo, can swim very well underwater, and is great at jumping for long distances with the back foot it's ancestor used to hop with. It's claws protruding from those new legs are long, durable, and great at digging burrows (that now also have pathways to the water from underground [which are useful during the winter when the ice is frozen], and extend below the frost line underground.) It also filter-feeds thanks to the strange adaptation of having it's back teeth evolve into bristles. Because of this, the wallahopper now swallows stones to help digest it's macroscopic food. It has also developed two, wide teeth that shovel up microorganisms into the creature's bristles while swimming underwater. As well as being larger, Male Wallahoppers also have longer horns on it's head than females. They live the same social lifestyle as their ancestors did with the exception that their herds now consist of ten to twenty five individuals, and that the herd's burrows are close to one anther's. They live for twenty seven years.