Being a dad is all fun and games for Adelaide Zoo gibbon Remus ahead of Father's Day LOVE: Remus gets a kiss from his daughter Nhu. PICTURE: Mike Burton Source: News Limited AS their long, agile arms swing from branch to branch, the chase is on: baby is hot on the heels of dad, until she catches up with him and plants a loving kiss on his cheek. It's an average day in the lives of Adelaide Zoo's white-cheeked gibbon Remus and his baby daughter Nhu: frolicking in their trees, climbing, tumbling, somersaulting, cuddling. The bond between them, unmistakable. As one of the most hands-on dads at the Adelaide Zoo, Remus will be celebrating his second Father's Day on Sunday - which this year, is also International Primate Day - with his daughter who turns two on September 14. Primate keeper Andrew Chauncy said baby Nhu (which meant "All according to one's wishes" in Vietnamese) had spent most of her two years clinging to her mother, Viet, 14. But now, Nhu was starting to grow up and become more independent, which meant Remus, 17, was now able to assume a greater role in his daughter's life. READ MORE: You know it's spring in South Australia, when ... "Up until now, he's been very back seat, while mum's done all the mothering, " he said. But since the baby has been out and about ... Remus is maturing and taking on more responsibility. And while mum is left dealing with the discipline side of child-rearing, like many dads, Remus takes the role of fun playmate, roughing up and tickling. "Mum's taking some breathing space and he's interacting with baby," Mr Chauncy said. Senior primate keeper, Althea Guinsberg, said white-cheeked gibbons were critically endangered, and as such Nhu was an important part of a regional breeding program. White-cheeked gibbons mated for life and as such, Remus and Viet's family life was hugely important. She said the primate fathers would receive some extra treats on Sunday, in recognition of both Father's Day and International Primate Day. This weekend, The Advertiser and Sunday Mail, in conjunction with the Adelaide Zoo, is offering dads the chance to visit the zoo for free. Look out for coupons in The Advertiser on Saturday and in The Sunday Mail.