Male Sumatran orangutans, October 2016

Half-brothers, Jiwa (born 17 October 1999) and Jantho (born 1 April 2013). As mentioned earlier in the Gallery, Jiwa suffered developmental problems probably due to the strange behaviour of his mother, Mawar.

That three year old orangutan looks huge for his age!

@Zoofan15 It might be that Jiwa is small for his!

@Gigit Quite possibly. His cheek pads are very underdeveloped for a male of 17 years.