
BOS FOUNDATION FACEBOOK
Mature male orangutans have cheek pads known as ‘flanges’, which can take up to 20 years to fully grow! As unusual as they may look, studies have shown that in the wild, flanged males have better mating chances and better health than their unflanged counterparts.
Link – https://www.facebook.com/photo/?fbid=3176031485792616&set=a.700208283374961