Among the greatest mysteries of the tropical rainforest are the pooping habits of sloths. Really. Those furry, slow-moving tree dwellers almost never descend from the safety of the tree tops—except ...

For years scientists assumed that sloths don't fart — believing the methane produced by their slow digestive system was simply absorbed into their bloodstreams and breathed out through their mouths.

Their four-part stomach takes its time to extract nutrients from fibrous leaves, which helps stretch out energy in an otherwise low-calorie diet. Two-Toed and Three-Toed Sloths Aren’t That Closely ...

Tanganyika Wildlife Park has lost three of its four sloths to chronic kidney disease, part of what officials say is a ...

Salisbury Zoo's four-year-old sloth, Bayou, was euthanized due to end-stage renal disease. The zoo provided extensive care for Bayou, including specialized veterinary treatment and enrichment ...