![Dominant male orangutan with the signature cheek pads that develope in response to a testosterone surge. | CanStock Dominant male orangutan with the signature cheek pads that develope in response to a testosterone surge. | CanStock](https://cdn.w600.comps.canstockphoto.com/dominant-male-orangutan-with-the-si-stock-image_csp32467564.jpg)
Dominant male orangutan with the signature cheek pads that develope in response to a testosterone surge. | CanStock
Orangutan Foundation International - Mature male orangutans have large flappy cheek-pads, known as "flanges". Not all males have them, and this trait of dominance can take up to 20 years to grow!
![ٹوئٹر \ Dublin Zoo Twitter پر۔ "Did you know that male orangutan's big cheek pads are known as 'flanges'? They can take up to 20 years to form and it is thought ٹوئٹر \ Dublin Zoo Twitter پر۔ "Did you know that male orangutan's big cheek pads are known as 'flanges'? They can take up to 20 years to form and it is thought](https://pbs.twimg.com/media/DfKKlovXcAAbO48.jpg:large)
ٹوئٹر \ Dublin Zoo Twitter پر۔ "Did you know that male orangutan's big cheek pads are known as 'flanges'? They can take up to 20 years to form and it is thought
![Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy](https://c8.alamy.com/comp/PH16P2/close-up-to-face-of-dominant-male-bornean-orangutan-pongo-pygmaeus-with-the-signature-developed-cheek-pads-that-arise-in-response-to-a-testosterone-PH16P2.jpg)
Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy
![Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of cute, animal: 97564427 Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of cute, animal: 97564427](https://thumbs.dreamstime.com/z/close-up-to-face-dominant-male-bornean-orangutan-pongo-pygm-pygmaeus-signature-developed-cheek-pads-arise-97564427.jpg)
Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of cute, animal: 97564427
Orangutan Foundation International - Mature male orangutans have flappy cheek-pads known as "flanges" that can take up to 20 years to grow! Unusual as they may look, studies have shown that in
![Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of hair, jungle: 97564903 Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of hair, jungle: 97564903](https://thumbs.dreamstime.com/z/close-up-to-face-dominant-male-bornean-orangutan-pongo-pygm-pygmaeus-signature-developed-cheek-pads-arise-97564903.jpg)
Close Up To Face of Dominant Male, Bornean Orangutan (Pongo Pygmaeus) with the Signature Developed Cheek Pads that Arise in Stock Image - Image of hair, jungle: 97564903
![Orangutan male with cheek pads crossing water, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-015685253 | agefotostock Orangutan male with cheek pads crossing water, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-015685253 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/6cacd79e55e19dcc103b3665bca0f1fc/esy-015685253.jpg)
Orangutan male with cheek pads crossing water, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-015685253 | agefotostock
![This here is a so-called 'unflanged' orangutan male. Flanges is another name for the large cheek pads that you see in orangutan males. However, not all males de… This here is a so-called 'unflanged' orangutan male. Flanges is another name for the large cheek pads that you see in orangutan males. However, not all males de…](https://i.pinimg.com/originals/c1/ed/e2/c1ede27b1a6f103cb834e6c1c518da1d.jpg)
This here is a so-called 'unflanged' orangutan male. Flanges is another name for the large cheek pads that you see in orangutan males. However, not all males de…
![Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy](https://c8.alamy.com/comp/PH16PK/close-up-to-face-of-dominant-male-bornean-orangutan-pongo-pygmaeus-with-the-signature-developed-cheek-pads-that-arise-in-response-to-a-testosterone-PH16PK.jpg)
Close up to face of dominant male, Bornean orangutan (Pongo pygmaeus) with the signature developed cheek pads that arise in response to a testosterone Stock Photo - Alamy
![Male Bornean orangutan (Pongo pygmaeus) with full cheek pads, Semenggoh Rehabilitation Center, Stock Photo, Picture And Rights Managed Image. Pic. U37-3346677 | agefotostock Male Bornean orangutan (Pongo pygmaeus) with full cheek pads, Semenggoh Rehabilitation Center, Stock Photo, Picture And Rights Managed Image. Pic. U37-3346677 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/b4301998499ef7b2799ce994e8a35538/u37-3346677.jpg)