marsupial

definition: 
A mammal of an order whose members are born incompletely developed and are typically carried and suckled in a pouch on the mother’s belly. Marsupials are found chiefly in Australia and New Guinea, and also in America.
sentence: 
In South America and Australia, however, marsupials continued to be an important group of land mammals.
difficulty: 
easy
toefl frequency: 
2
toefl classification: