This is the moment a dogged spider monkey climbed on to a US tourist, pulled her t-shirt down and clung on despite her hilarious efforts to break free. The video shows the persistent monkey wrapping its long arms, legs and tail around the woman's body in Cancun, Mexico. As the animal clambers up the woman's legs using its prehensile tail and latches itself on to the tourist's shirt, panic soon sets in as she tells her friend: 'I don't know what to do y'all. I'm scared.' She then proceeds to kneel down to the floor in an effort to disentangle from the primate who wraps its arms around her neck to cling on.