After six years spent helping rehabilitate Anne the elephant, the park bids farewell to one of her most cherished keepers. Meanwhile, Kate Humble plays cupid with two strange animals, Ben Fogle catches up with a pregnant anteater that is due any day, and Jean Johansson is with a much-loved tapir as vets attempt to find out what is wrong with her. Will x-rays and blood samples give them a diagnosis before it is too late?