Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone


Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone surge.


Size: 5184px × 3456px
Photo credit: © Witthaya Khampanant / Alamy / Afripics
License: Royalty Free
Model Released: No

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