 The IUCN lists the pygmy three @-@ toed sloth as critically endangered ; it is also listed in CITES Appendix II . According to the IUCN , conservation efforts are being hampered by conflict between locals and the government . Threats to the sloth 's survival include timber harvesting and human settlement , that might lead to habitat degradation . Studies in 2010 and 2013 suggested a recent population bottleneck and decline in genetic variability . 
