The kangaroo is the largest game animal in most of Australia, and the hunting of it is governed rather than free. Distribution rules assign parts of the carcass to particular relatives by kinship position, so that a successful hunter often keeps the least of it. Those rules are not politeness; they are how the obligations of a kin system are made visible and enforced.
Every part is used. Sinew for binding and for the ends of spear-throwers, hide for water carriers and for warmth, bone for points, teeth for engraving tools, and the tail as the preferred cut. Cooking in a ground oven, the animal placed whole in a pit with hot stones and covered, is documented across a wide area.
Some groups have restrictions on eating the animal whose Dreaming a person holds, and where those apply they are specific to the person and the country rather than general. This is the sort of detail that flattens badly in summary, and the atlas records that the rules exist rather than reproducing a version of them.
Since colonisation the animal has also become a commercial and a political object: a harvested species, a national emblem, and an argument about land management, in which Aboriginal fire and hunting practice is now recognised as having shaped the populations that Europeans found and assumed were natural.