The wolf keepers think they might soon be hearing the patter of tiny paws, but trying to get a good look at mum is easier said than done. What will the Siamang gibbons make of their special drain-pipe feeder? Meet the only known captive pair of banded leaf monkeys in the world and find out what Etna the black rhino makes of a big, stinking pile of male rhino poo. Rani Price and Matthew Skilton bring more stories from the wild animal parks.