Sluggish sloth's secrets of success revealed in new study

Helen BriggsBBC environment correspondent•@hbriggsGetty ImagesOnly tree-living sloths are found on the planet today, but the group was once much more diverseSloths 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 examined the evolutionary history of the animals, including…