Which specific fibrous plant material provides bulk and is easier to digest than tough leaves?
Answer
Pith
Pith, which is the spongy tissue located in the central core of plant stems, is identified as being particularly valuable because it is significantly easier for the gorilla's digestive system to process compared to tougher, more mature leaves. This material serves the critical function of providing essential bulk to the diet, contributing to the large volume of fibrous material necessary for maintaining proper gut motility in these large herbivores. Although roots and bark are also consumed, the pith stands out due to its specific textural and digestive advantages over the tougher components of the foliage.
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