Back with the mama and baby Siamang at Khao Kheow Open Zoo (KKOZ) a few weeks ago, I was finally able to capture a shot I'd been envisaging for some time: mum taking the young one out for a stroll ;^)
As with all Gibbons (which, as most of you who read my text are already more than aware, are apes not monkeys!), Siamang are mostly arboreal, living out there lives in trees, but it's not uncommon to see them them coming down to the ground if food and water can be found there. Gibbons have the longest arms of all primate species, which are ideal for swinging dexterously and with apparent ease from branch to branch through the forests in which they dwell.
While walking upright on the ground, Gibbon tend to raise their arms high above their heads, most likely to give them better balance, but I also suspect to keep them from getting in the way of their relatively shorter legs and tripping over!
Another note worthy of mention: This is the first photo I'm showing you where you can clearly see the usually loose hanging excess of skin under the adult's chin forming a fully inflated so-called “gular sac”, something that both the female and male adults of the species sport. With the gular sac filled with air, the Siamang is able to make very loud and resonating calls and songs that can be heard for great distances, and if you've never heard the sound, take it from me, it one of the most beautiful calls of Nature you can imagine …... or at least that's the way it sounds to me ;^)