Complex sentence: It apparently walked on its legs while using its knuckles one at a time; they have also been reported to sometimes walk using saltation, have flat, rounded feet, and are sometimes reportedly mistaken for kangaroos or wallabies.
Split into simpler sentences: It apparently walked on its legs while using its knuckles one at a time. They also sometimes walk using saltation, have flat, rounded feet, and are sometimes mistaken for kangaroos or wallabies.