The lethal Australian and Asian beaked sea snakes have been discovered to be two unrelated species - despite looking identical. The species evolved separately but ended up looking the same, a process known as convergent phenotypic evolution. This mix up could have proved deadly as one antivenom was used for both snakes.
Inland Taipan - World's most venomous land snake The inland taipan is known colloquially as a "fierce snake", reaches up to 2.5 metres in length and is native to western NSW, south-eastern South Australia and southern parts of the Northern Territory. A drop of venom can kill 100 adult men and 250,000 mice, Taronga Zoo spokesman Mark Williams said.
WHEN IT COMES TO self-defence, Australia's snakes have got things pretty well covered. We share our continent with about 140 species of land snakes, some equipped with venom more toxic than any other snakes in the world. 10 most dangerous Australian snakes are: Eastern brown, Western brown, Mainland tiger, Inland taipan, Coastal taipan, Mulga, Copperhead, Small eyed, Death adder, Red bellied black.