Week in wildlife in pictures: a dangling marmoset, rare leopard babies and an eyelash snake | Environment

Introducing the limestone eyelash pit viper, a newly discovered species of snake that lives in the forests of southern Thailand. “Normally [pitvipers] have one large scale above the eye which looks a bit like an eyebrow and gives these snakes a serious look,” said one of the scientists behind the find, Nikolay Poyarkov. But this new species has a number of small, slightly protruding scales above the eye, giving the impression of eyelashes. “The snake looked pretty cute,” Poyarkov added

Photograph: Parinya Pawangkhanant/WWF/AFP/Getty Images