HINK OF AUSTRALIA’S ICONIC kangaroos and you’ll probably think of them hopping along with their large and muscular back legs, a method of locomotion known as saltation. has explored the locomotory evolution of kangaroos and their relatives (including wallabies, wallaroos and tree-kangaroos) across the fossil record, and found that the majority of the larger forms did not employ the high-speed endurance hopping of today’s large kangaroos.
