While we don’t know exactly how fast Asiatic black bears run, it’s likely closer to that of American black bears. They have attacked humans in places like Japan, which means they can probably reach ...

To time how fast a sprinter runs, you just need a stopwatch. To time how fast magma moves, you need to know a little bit ...

The San Diego Zoo welcomed a newborn Linné’s two-toed sloth on Feb. 8, the first of its kind to be born at the zoo since June ...

We also explore how the sloth reaches up into the trees to eat fruit. Down below, on the forest floor, the leopards practise their fast running, then prowl around the sloth’s tree, looking up ...

The Oropouche virus, dubbed "sloth fever," is spreading fast in popular holiday getaways. It has already been found in a few American patients who returned recently from certain parts of the Caribbean ...