Changes

The common wombat (''Vombatus ursinus'') reaches about three feet in length and produces distinctive cubical scat<ref name="triggs">[http://dannyreviews.com/h/Wombat.html Review: ''The Wombat: Common Wombats in Australia'' by Barbara Triggs]</ref>. There are also two or three (depending on classification) rare species of hairy-nosed wombats of the genus ''Lasiorhinus''<ref>[http://www.wombania.com/wombats/hairy-nosed-wombat.htm Wombat Information Center: Hairy Nosed Wombat]</ref>.

The common wombat (''Vombatus ursinus'') reaches about three feet in length and produces distinctive cubical scat<ref name="triggs">[http://dannyreviews.com/h/Wombat.html Review: ''The Wombat: Common Wombats in Australia'' by Barbara Triggs]</ref>. There are also two or three (depending on classification) rare species of hairy-nosed wombats of the genus ''Lasiorhinus''<ref>[http://www.wombania.com/wombats/hairy-nosed-wombat.htm Wombat Information Center: Hairy Nosed Wombat]</ref>.

One of the distinctive features of wombats is that their pouch opens towards the rear of the animal, like the koala<ref>http://www.parkweb.vic.gov.au/education/factfiles/03.htm</ref>, but unlike most other marsupials.  This may be to avoid the problem of the pouch filling with dirt whilst the animal is burrowing.

One of the distinctive features of wombats is that their pouch opens towards the rear of the animal, like the koala, marsupial mole, and the now-considered-extinct thylacine (tasmanian tiger), but unlike most other marsupials<ref>http://www.parkweb.vic.gov.au/education/factfiles/03.htm</ref>.  This may be to avoid the problem of the pouch filling with dirt whilst the animal is burrowing.

==Origins==

==Origins==