Canberra academic Sally Berridge found the diaries of her great grandmother, Maud, who travelled with her master mariner husband, Harry, on five major ocean voyages between 1869 and 1884 thus escaping the Victorian woman's life of waiting at home.

Symbiosis is about interconnectedness. Its study is the science of compromise and getting along, of connection and co-operation, a kind of antithesis of survival of the fittest.

The 28-year-old Swedish performer, born Tim Bergling, was in Muscat, Oman when he died.

An Australian producer and DJ who has toured with Avicii said the Swedish-born musician's death on Friday is a "shock" and a major loss.

It was a decision that shook the electronic dance world, and one Tim Berling, then 27, did not take lightly.