Get out of the water!
A box jellyfish sting can lead to cardiovascular collapse and death within minutes, making it the most venomous creature on Earth.
Paul Sutherland / AAP
Far North Queensland's rainforests host a neurotoxic stinging tree that feels "like being burnt with hot acid and electrocuted at the same time", causing months of excruciating pain.
Despite being the size of a $2 coin, Irukandji venom is 100 times more potent than cobra venom.
AAP / WA Department of Parks and Wildlife
Giant thunder birds (Dromornithidae) roamed Australia as recently as 15,000 years ago.
