What characteristic defines the subterranean foraging style of *Rena humilis*?
Answer
Fossorial
The term fossorial describes organisms, like the Western Blind Snake, that spend the majority of their lives underground or buried within the substrate, such as soil, leaf litter, or rotting wood. This lifestyle dictates that foraging occurs entirely below the surface. Instead of waiting near an entrance, the snake tunnels through the earth, following established prey networks to locate brood chambers, necessitating physical adaptations for soil displacement.

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