This one is a baby howler monkey, sleeping on a branch. He's orange instead of black because of a pigment mutation. This makes him much easier for predators to spot and he'll be lucky to reach adulthood.
![Sad :(](./images/smilies/icon_sad.gif)
From the interwebz:
Brave soul if this is where I think it is!
https://sublunarphotography.blogspot.co ... ctory.html