Hunting and the pet trade: Although some countries protect the three-toed sloth by law, illegal hunting still poses a threat to their population. Poachers hunt sloths primarily for their meat, as some people consider sloth meat a delicacy. Sloths also fall victim to illegal collection for the pet trade, which not only takes individuals out of their natural habitat but also deprives them of proper care and attention.
Natural predators: While not a significant contributor to the three-toed sloth's endangered status, natural predators such as large cat species like jaguars can occasionally prey on them. However, due to habitat destruction, sloths might find themselves venturing into new areas less familiar to them and thus becoming an easier target for predators.
Slow rate of reproduction: Sloths generally exhibit a slow reproduction rate. On average, females give birth to a single offspring only once every 1.5 to 4 years. Their slow maturation period further extends the amount of time it takes for the population to replenish effectively. As their natural habitat shrinks and available resources may diminish, competition to find suitable partners, sufficient amounts of food, and proper nesting can limit breeding.
Combining habitat destruction, hunting/poaching, illegal pet trade, slow reproductive rates, and the effect of habitat fragmentation on reproduction, survival, and overall fitness of sloths paints a dire picture, causing the population of the Brazilian three-toed sloth to spiral toward potentially devastating numbers.