Australia’s most dangerous marine creature – the Australian Box Jellyfish – is immortalised in the latest release in the Royal Australian Mint’s ‘Australia’s Most Dangerous’ investment series. Both feared and respected, this jellyfish is the largest of its species with a box-like bell reaching up to 30 centimetres across, with up to three metres of trailing tentacles. The only place you want to see this deadly creature, is in your coin collection!