The rat kangaroo
Other marsupial forms are more unique in their adaptations for example the boodie (Bettongia lesueur) a shy, strictly nocturnalrat kangaroo, possessing small pointed canine teeth to help fed on other small animals. It makes its nest in a burrow, industriously collecting material for it in a most ingenious way. It picks up a few straws in its mouth, stacks them in a bundle on the ground and then pushes them back over its long tail with its hind legs. The tail then curls up tightly so that the straw is effectively baled and the boodie move away by hopping. Boodies locomote using only their back legs which have very long feet. An animal like the boodie may have been the ancestor to the spectacular radiation of bipedalism that resulted in the kangaroos and wallabies
The marsupial family Potoroidae includes the bettongs, potoroos and two of the rat-kangaroos. All are small, brown, jumping marsupials and resemble a large rodent or a very small wallaby
