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Gummivore
''Gummivores'' are a hybrid class of omnivores that defines a group of animals whose diet consists primarily of the gums and saps of trees (about 90%) and bugs for protein. (Merrit, J.) The animals in this group are classified as arboreal, terrestrial primates most commonly including the marmoset and the lemur. These animals that live off of the injuries of trees are home to about 8m off of the ground up to the canopies. (Plavcan, J. M., and Kay, R.)
==Specific traits==
A common example of a gummivore would be the lemur, whose diet is about 90% gum exudates from a tree’s branches or trunk. (Merrit, J.) The lemur is a primary example of gummivores as it possesses a special set of unique traits and characteristics differing from other primates. Lemurs have what is to be called a “tooth comb” which is made up of the lower incisors and canines. These specialized teeth are used to scrape off the gum on the surface of a plant. (Merrit, J.) The fork-marked lemur consumes the gum from beneath the bark of trees, via spaces created by beetles. This lemur's long, slim tongue enables them to access these orifices in the bark. They also possess a symbiotic bacterium that assists in the digestion of the gum, starting the process in the mouth. (Primatol, A.)
The black-tufted marmoset (Callithrix penicillata) is another good example that mostly lives off of the sap from trees. To do this, the monkey uses their lengthened lower incisors to chew through the bark of a tree and obtain the sap; this classifies it as a gummivore. (Merrit, J.) The incisors are extremely specialized since they are the marmosets’ “tool” to acquire food. The teeth have a thickened enamel on the exterior, but lack the enamel on the inside creating a tough, chiseling tool. Both the lemurs and marmosets have a gecko-like hand and cat-like claws which are extremely useful in clinging on to trees for extended amounts of time. (Merrit, J.)
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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