Which marsupial shares a common ancestor with wombats within the suborder *Vombatiformes*?
Answer
Koalas
Wombats are grouped within the suborder *Vombatiformes*, and this suborder specifically shares a common ancestor with koalas. While wombats and koalas have undergone significant divergence in morphology and diet over evolutionary time—one being terrestrial burrowers and the other arboreal specialists—their placement within *Vombatiformes* confirms a closer, shared lineage compared to other major marsupial groups like kangaroos or possums, which reside in different suborders within the larger order *Diprotodontia*.

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