Swiss artist Pipilotti Rist strikes a pose during her worldwide unique art performance on coral death entitled "Toi comme le corail symbiotique", in Bern, Switzerland, on Sunday, October 7, 2018. In a public indoor swimming pool, people immerse themselves in a colour world of the oceans specially created to draw attention to the death of corals. (KEYSTONE/Anthony Anex) Ref: 356978419