This is the most common of the four species of three-toed sloth. It ranges in tropical forests of South and Central America. Here you can see the dark throat and dark mask through the eyes. This is a female carrying a baby on her back, not visible in this photo. Sloths are known for the community of algae, fungus and even moths which live in their fur. Their famously low metabolism is an adaptation to their diet of leaves which have low caloric content. Sloths are also unusual in being one of the few mammals that can have more than seven cervical vertebrae. Three-toed sloths instead have up to nine which allow them to turn their head almost completely around. Canon PowerShot SX60 HS.
References:
BioMed Central. (2011, May 6). Sticking their necks out for evolution: Why sloths and manatees have unusually long (or short) necks. ScienceDaily. Retrieved July 2, 2019 from www.sciencedaily.com/releases/2011/05/110505212314.htm
Wikipedia contributors. (2019, May 11). Brown-throated sloth. In Wikipedia, The Free Encyclopedia. Retrieved 23:20, July 2, 2019, from https://en.wikipedia.org/w/index.php?title=Brown-throated_sloth&oldid=896594020