| Diprotodontia - wombats, kangaroos, wallabies, koalas There are  146 different species of diprotodontia. They are marsupials and are only found in Australia, New Zealand, New Guinea,  and surrounding islands. Unlike  the Dasyuromorphia and Monotremata orders of marsupials, the second and third toe on the hind feet of the marsupials in this order are joined together and they have two large 
  
   incisors
  
on their lower jaw. Like all marsupials, the females have pouches and the young are born blind, hairless, and helpless. Most of the species in this order are herbivores. Animals in this order include: wombats, kangaroos, wallabies and koalas. There are 10 families in this order. 
 
 
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