“Swans have long been renowned as symbols of lifelong fidelity and devotion, but our recent work has shown that infidelity is rife among black swans,” said Dr Mulder.

Established in 1846, Melbourne's Royal Botanic Gardens are magnificently landscaped and boast a superb collection of plants from all around Australia and the world. Spend a few hours strolling around, observing the beautiful black swans and water birds.