How do the ventral scales of *Pantherophis obsoletus* contrast with its dorsal scales?
Answer
Ventral scales are typically smooth, unlike the keeled dorsal scales.
A key identifier when closely examining or handling the snake involves comparing the texture of the scales on the top side versus the underside. The dorsal scales along the snake's back are characteristically keeled, providing a rougher surface that aids in gripping surfaces while climbing. In contrast, the scales situated on the snake’s belly, known as the ventral scales, are characteristically smooth. This combination of rough dorsal scales and smooth ventral scales serves as a reliable physical marker distinguishing this species.
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