The critically endangered pygmy three-toed sloth which is endemic to the small island of Isla Escudo de Veraguas off the coast of Panama.

Different types of leaves build up various defence systems to protect them against folivores, such as tough cell walls and chemicals that build up over time and become toxic. To combat these problems, sloths generally feed on new leaves at the end of branches because they’re still soft and not yet toxic. Eating a variety of leaves also prevents them from ingesting too much of one type of toxin. Ed Yong (21 January 2014). "Can Moths Explain Why Sloths Poo on the Ground?". Phenomena. Archived from the original on 29 May 2018 . Retrieved 23 January 2014. a b Pauli, J. N., Mendoza, J. E., Steffan, S. A., Carey, C. C., Weimer, P. J., & Peery, M. Z. (2014). A syndrome of mutualism reinforces the lifestyle of a sloth. Proceedings of the Royal Society B: Biological Sciences, 281(1778), 20133006. DOI: 10.1098/rspb.2013.3006

4. Sloths are blind in bright daylight

Sloths have the lowest metabolic rate of any mammal, which means that it takes them a long time to digest anything. They have an incredibly large and permanently full four-chambered stomach, which can account for up to 30% of their body mass. In two-fingered sloths, this over-sized stomach is supported by 46 ribs (23 pairs) which is more than any other mammal! Two-fingered sloths have 46 ribs to support their large stomachs – that is more than any other mammal! 7. They can starve to death on a full stomach Raj Pant, Sara; Goswami, Anjali; Finarelli, John A (2014). "Complex body size trends in the evolution of sloths (Xenarthra: Pilosa)". BMC Evolutionary Biology. 14: 184. doi: 10.1186/s12862-014-0184-1. PMC 4243956. PMID 25319928. {{ cite journal}}: CS1 maint: unflagged free DOI ( link) a b c d "Sloth". Encyclopedia Britannica. Archived from the original on 19 May 2017 . Retrieved 1 December 2017.

Megalocnidae: the Greater Antilles sloths, a basal group that arose about 32 million years ago and became extinct about 5,000 years ago. [8]Sloths: Hottest-Selling Animal in Colombia's Illegal Pet Trade". ABC News. 29 May 2013. Archived from the original on 6 July 2020 . Retrieved 2 December 2017. Hayssen, V. (2011). " Choloepus hoffmanni (Pilosa: Megalonychidae)". Mammalian Species. 43 (1): 37–55. doi: 10.1644/873.1.