The world´s oceans – deep and unexplored Dive into the intricate ecosystems of the world's oceans, their lawless stretches, and the extremities that teem with life, all crucial to our existence and... Text: Lina Mattsson Photo: Tobias Dahlin, Simon Stanford, Johan Candert International oceanBiodiversityecosystems in the seamariana trenchthe world’s deepest oceanimportance of the oceanthe seven seasextreme environmentscoral reef