An Australian zoo has posted an urgent plea on its Facebook page for help in returning eight stolen endangered monkeys, so small they could fit in a handbag or the palm of your hand. Symbio Wildlife Park, south of Sydney, said thieves broke into the park Sunday night and stole a breeding pair of Cotton top Tamarins, their two babies, and four Pygmy marmosets. “These animals are part of international breeding programmes and are crucial to the survival of the species, there are only 300 Cotton top Tamarins left in the wild, so time is running out,” said the zoo's Facebook message. “These animals need specialised housing and diet to survive, if they are not returned home safely, they may not survive, the whole team at Symbio are extremely worried,” it said. Park director John Radnidge said the thieves cut power to the zoo and cut through three padlocks to gain access to the monkeys.