flanged vs unflanged orangutan

Daniel Parker

less than a minute read

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22-02-2025

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I cannot find any information about "flanged" and "unflanged" orangutans in scientific literature or reputable sources. Orangutans are categorized by species (Bornean and Sumatran) and subspecies, but there's no established biological classification using the terms "flanged" and "unflanged" in the way it might be used for other animals with sexual dimorphism.

It's possible:

• The terms are used informally or within a specific, niche context: Perhaps this terminology is used within a specific research project, a zoological setting, or within a particular community. More context is needed to understand the meaning.
• There's a misunderstanding: The terms might be misinterpreted or incorrectly applied to orangutans. There are visible differences between male and female orangutans (sexual dimorphism), but "flanged" and "unflanged" aren't standard descriptors. Males typically develop larger cheek flanges as they mature. This could be the source of confusion.
• It's a fictional concept: The terms might be part of a fictional work or a misunderstanding.

To help me provide a useful answer, please provide more information:

• Where did you encounter these terms? (e.g., a book, website, conversation)
• What was the context? What was being discussed when these terms were used?
• What were you hoping to learn by comparing "flanged" and "unflanged" orangutans?

With more information, I might be able to offer a more relevant and informative response.