The extermination of the thylacine would be a zoological calamity; but it is impending.
"Our Vanishing Wild Life" by William T. Hornaday
The male Thylacine has a pouch which is quite or very nearly as well formed as in the female.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard
The thylacine, or Tasmanian tiger , was the top dog of the marsupial food chain until Asian dingoes, introduced 4,000 years ago, forced the animal off Australia and onto Tasmania.