Then, with a quick lick, the oil secreted from glands in their elbow is mixed with saliva to produce a toxic concoction. A slow loris’s bite is so toxic it can kill a human. Not so cute.

Slow lorises (above) are the only venomous primates. They have become an internet sensation thanks to videos of them raising their arms to be 'tickled'. However, a slow loris with its arms raised is ...

This story appears in the October 2017 issue of National Geographic magazine. After videos of slow lorises being tickled and fed rice balls in captivity swept the Internet, the wide-eyed animals ...