While Australia's northern hairy-nosed wombat may be one of the world's most endangered mammals, its southern cousin has, by comparison, thrived.
December 02, 2012 :But now a food shortage – and an invasion of toxic plants – has killed thousands of southern wombats, prompting fears of a local extinction.
The native grasses which are the wombats' staple food have been pushed out by exotic plants such as onion and potato weed. The situation, created by poor land management, has been exacerbated by two years of above average rainfall during which the weeds have flourished. Not only do the weeds provide scant nutrition, but many of them are toxic and can cause liver disease... http://www.independent.co.uk/environment/nature/wombats-hit-by-killer-plants-8373788.html