Feeding on or eating plant stems and stalks; herbivorous animals that specifically consume the stem portions of plants.
From Latin 'caulis' (stem) and '-vorous' (eating), combined in modern scientific terminology. The suffix '-vorous' comes from Latin 'vorare' (to devour). This term evolved to describe specific feeding behaviors in zoology.
Some insects like aphids are specialized caulivorous pests because they evolved to drink sap directly from plant stems rather than leaves—it's like they discovered a hidden vein of plant juice that fewer predators can tap into!
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