Final answer:
Gummivores are animals that feed on plant gums or saps, and they may have specialized tooth structures such as heterodont dentition to accommodate their diet.
Step-by-step explanation:
Gummivores are animals that primarily feed on gums or saps, which are sticky substances produced by plants. A famous example of a gummivore is the koala, which consumes eucalyptus sap. Gummivores have specialized dietary habits, adapting to extract and digest plant saps, making them contrast with other feeding groups, such as carnivores or herbivores. These dietary preferences can greatly affect the dentition of the animal; for instance, a specialized tooth structure like heterodont dentition, which includes different types of teeth modified for various purposes, can be found in animals with varied diets that may include saps in addition to other foods.