Grey tree frog (Hyla versicolor) resting on a tree branch. This arboreal frog is native to much of the eastern US and southeastern canada.

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Photo credit: © NIGEL DOWNER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: anatomy, body, epidermis, exocrine, finger, fingerprint, forensic, forensics, gland, human, keratinised, print, ridges, skin, surface, sweat