Sloths once roamed the Americas, ranging from tiny, cat-sized animals that lived in trees all the way up to massive ground sloths that may have weighed up to six tons. The only species we know and ...

Researchers have uncovered important genomic data from the remains of an ancient giant ground sloth, or Mylodon darwinii, the emblematic creature named after Charles Darwin, whose discovery of ...

Pleistocene ground sloths constitute a remarkable and diverse group of xenarthran mammals that thrived across South America during a period of significant climatic and environmental flux. Their fossil ...

Sloths have a reputation for being sluggish and slow, spending most of their lives dozing in trees, but a new study suggests this is one of the enduring secrets of their success. Scientists have ...

Sloths do everything in slow motion – even blinking. But why did they evolve to live their lives at such a slow pace? Sloths, as their name betrays, have little need to rush. For the most part, they ...

Different sloth groups can be easily identified by the number of long, curved claws on their forelimbs. The two-toed sloths, as the name suggests, have two claws on their front limbs, while the ...

Sloth size and habitat shifted multiple times over the past 35 million years, but human hunting likely drove the slower, larger species to extinction. Sloths once came in a variety of sizes and lived ...

The extinct giant ground sloths were some of the only mammals that had digestive systems large enough to process the huge avocado seeds whole. They feasted on the fruit and then dispersed the seeds ...

Sloths are more vulnerable to the rising temperatures associated with climate change than other mammals, due to their unique physiology. In a new study, my colleagues and I found that sloths’ ability ...

A ground sloth species that roamed the Dominican Republic's forests 5,000 years ago has been identified from a poor specimen that died after falling into a cave. The remains of 'Parocnus dominicanus' ...

Monique Pool first fell in love with sloths when she took in an orphan from a rescue centre. Since then many sloths have spent time in her home on their way back to the forest - but even she found it ...