It is extremely rare that orangutans give birth to twins but in October 2009 an orangutan at Camp Leakey in the Tanjung Puting national park did give birth to twins and as far I know this is the first time that this has been documented. One baby did die but below is a photo I took of the mother and surviving baby at just 5 days old.

To see a photo of mother and baby please click the "read more" bit.