A cooling, drying climate turned sloths into giants – before humans potentially drove the huge animals to extinction. Today’s sloths are small, famously sluggish herbivores that move through ...

Sloths, the world's slowest mammal, have been around for 64 million years. Sharyn Alfonsi traveled to Costa Rica to learn more about how they've survived.

Today, sloths are slow-moving, tree-dwelling creatures that live in Central and South America and can grow up to 2.5 feet long. Thousands of years ago, however, some sloths walked along the ground ...

US health officials are warning travelers about a potentially deadly insect-borne virus known as sloth fever. Pregnant women might be at risk.

Visitors to Minnesota’s Como Park Zoo witnessed a sloth give birth. Sago, a Hoffman’s two-toed sloth, surprised everyone, including the zoo staff.

The survival of sloths is under threat due to climate change, according to a new study. The famously slow-moving — and adorable — creatures of Central and South America could die out if ...

The Washington State Department of Transportation (WSDOT) has removed a second stuffed sloth from a tree along northbound I-5 near Bellingham, and is asking the ...

Sago - a Hoffmann's two-toed sloth - delivered her little critter on Wednesday while on exhibit in the zoo's primate building. Both mom and baby are doing great.

Led by Rebecca Cliffe, a zoologist and founder of The Sloth Conservation Foundation, experts focused their most recent investigation on two-fingered sloths (Choloepus hoffmanni), which live in ...

The researchers studied 12 adult two-fingered sloths at the Sloth Sanctuary of Costa Rica and analyzed their core body temperatures and oxygen consumption.

Sloths are among the most beloved of jungle animals. The famously sluggish and furry tree-dwellers are found throughout Central and South America, giving off the vibe of relaxed lifestyle. Yet a ...

Sago - a Hoffmann's two-toed sloth - delivered her little critter on Wednesday while on exhibit in the zoo's primate building. Both mom and baby are doing great.