从鸭嘴兽到水獭

sfacedextinctionbyfurhuntersuntilthe1920s,whenconservationlawsbegantoprotectthecontinentsdozensofmarsupialspecies.

koala也叫袋鼠熊（kangaroobear）。

袋鼠（kangaroo）也只有澳洲有。袋鼠前面两只手，很会打拳（boxing），后面两脚，很能跳，大尾巴在跳的时候可帮忙保持平衡（balance）。

美国有俗语“袋鼠法庭”kangaroocourt,u.s.informal.anunauthorizedorunofficialcourt,usuallyselfconstituted,asamockcourtbyprisonersinajailorafrontiercourt：…shotdownovernorthkoreain1952andcondemnedtoprisonbyaredkangaroocourt.（newsweek），类似中文所说的“私设公堂”。以前在kangaroo州，法官巡回各地办案，由这跑到那，很像袋鼠跳来跳去，所以叫袋鼠法庭。（kangaroocourt：akangaroocourtisanillegalmockorshamcourt,usuallyonesetupbyinmatesofaprisontolevyfinesandpunishmentonotherinmateswhoviolatethe“code”.suchorganizations,usuallyveryinformalinnature,existinmostlargeprisonsandareevenencouragedbysomewardensasausefuldeviceformaintainingorder.