Historical Illustration of a Gibbon - Primate Anatomy and Evolution #3909149 (License: Personal Use)

This finely detailed woodcut or engraving shows a gibbon (likely *Hylobates* spp.) balancing on a thick branch with one hand extended forward, illustrating its brachiation-adapted anatomy. The image captures the animal’s hairless face, prominent eyes, and muscular limbs-typical of early natural history documentation. Such illustrations were common in 19th-century zoological texts to convey morphology before photographic reproduction became widespread.

Used in educational, historical, or museum web pages about primate evolution, taxonomy, or the history of biological illustration; targets users researching comparative anatomy, vintage scientific art, or gibbon behavior.