Scientists have always been uncertain how wombats – which have circular anuses – fashion their faeces into cubes.
Wombat : 关我屁事 ?!?
https://sg.yahoo.com/news/scientists-solve-mystery-wombats-produce-222723165.html
Wombat : 关我屁事 ?!?
https://sg.yahoo.com/news/scientists-solve-mystery-wombats-produce-222723165.html