In today's programme, keepers Graeme and James travel to the other side of the world to help in the Australian bushfire rescue. Four of the park's koalas have come from the area of south Australia worst affected, and the staff feel a deep sense of connection and are moved to help. They film their experience as they witness the devastation caused by the bushfires. Kate rolls up her sleeves and helps to tackle the 100 kilos of dung produced daily by Anne the elephant. Now in her sixties, she is one of the park's oldest residents, and her dung shows that her teeth are still in fine working order. Ben may have scaled Everest and sailed the Atlantic, but can he rise to the challenge of motivating an overweight monitor lizard? And how do you feed a giraffe when it towers above you? Jean Johansson gets her daily exercise finding out.