Snakes optimize their body scales in terms of locomotion, thermoregulation, and conspicuousness for survival in their respective ecological niche. Here, we present our analysis of the scales of the Hungarian Meadow Viper (Vipera ursinii rakosiensis). Micro-fibril structures with nano-scale steps are observed on the ventral scales. These structures are oriented from head to the tail direction. Interestingly, a ridge like reticulate structure is observed on the dorsal scales. Spectacle scales are mostly flat and have polygonal cracks on the surface. High optical transmittance is measured on the ventral and spectacle scales. However, much reduced transmission is recorded on the dark dorsal scales which can be attributed to the presence of melanin within the scales. The scales are water hydrophobic; however, the contact angles are not high enough to allow for self-cleaning properties.
|