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Which marsupials form permanent cohesive social groups?
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marsupial
Red kangaroo (Macropus rufus). The home range of this species spans much of Australia's interior, and it is the largest member of the family Macropodidae.
Among marsupials, there is generally little permanent social organization beyond short-lived pair bonds during mating. While many grazing species, such as kangaroos and wallabies, congregate in feeding groups known as mobs, these are not considered true social groups because the individuals move at liberty and do not follow leaders or elders.12
The only marsupials known to form permanent, cohesive social groupings are the lesser gliders (Petaurus).1