A new fossil and DNA analysis traces how dozens of sloth species responded to climate shifts and humans. Just two small tree-dwelling sloths remain today.

Sloth's Tragic Real-Life Story Posted: June 2, 2025 | Last updated: June 2, 2025 If you only knew him from The Goonies, you might not recognize John "The Tooz" Matuszak if you saw a picture of him ...

The big picture suggests that since the emergence of the oldest known sloths—ground animals around the size of a Great Dane—the creatures evolved into and out of tree living a number of times.

For centuries, people encountering sloths for the first time have reacted by ridiculing them. In 1526, Spanish conquistador Gonzalo Fernández de Oviedo y Valdés wrote that the sloths he’d seen ...

New research painted a more accurate picture of the megafauna that spread widely around the Americas before they went extinct. By Jeanne Timmons Ground sloths emerged in South America tens of ...

A second sloth was later removed ... slowing down to get a closer look or driving distracted to try to snap a picture,” the department said in a Facebook post. During the same period, there ...