What unique physical characteristic of *Rena humilis* allows researchers to observe it under specialized gear?

Answer

Its fluorescence under low-frequency ultraviolet light

The Western Blind Snake, *Rena humilis*, possesses a specific adaptation that facilitates observation by researchers employing specialized equipment. This adaptation is its characteristic fluorescence when exposed to low-frequency ultraviolet light. This property means that when UV light is shined upon the snake, it emits a visible glow, allowing scientists to track or study the creature even when it is active or located in subterranean environments, provided they have the necessary UV lighting apparatus. This contrasts with passive observations, leveraging a unique physiological trait for detection.

What unique physical characteristic of *Rena humilis* allows researchers to observe it under specialized gear?
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