Wombats, Kangaroos, Wallabies and even Pademellons all graze on the same big fields call Marsupian Fields but they're all kind of isolationist about it.
Wombats are usually loners while the others hang out in groups but they all usually keep seperate from the other species.
When this Wombat wondered unaware through a group of Eastern Grey Kangaroos, they all watched him strangely as he passed but there was never any violence.

Narawntapu National Park - Tasmania, Australia
Jan 2012