Assertion: possum's diet | /r/HasProperty | louys et al
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Source sentences:
text: Similar ear regions in fossil and living koalas suggest that a sedentary lifestyle and loud calling habit may have evolved early in the group, but differences in palate and tooth structure between Phascolarctos and other koalas suggest that the former is more strongly adapted for a tough, nutrient-poor diet (Louys et al. 2009).