Having horns that are hollow or horn-like structures that are essentially hollow tubes, a trait found in certain mammals.
From Latin cavus (hollow) combined with cornu (horn). This zoological term describes the hollow-horned animals like cattle, sheep, and antelopes, distinguishing them from solid-horned creatures.
Cavicorn animals are the champions of horn recycling—they don't shed their horns like deer do; instead, they grow permanent hollow cores that they can use to look scary and regulate body heat!
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