4. Eastern brown snake (Pseudonaja textilis)
LD50: 0.05
Eastern or common brown snake ranks 4th in our list of most venomous snakes in the world. It inhabits a wide variety of ecosystems of eastern Australia and sparsely in New Guinea, from savannas, pastures, coastal lands, to arid shrublands and farmlands. The average length is 1.1-1.8 meters, and they are evenly brownish orange colored. Being present in urban areas, encounters with humans are very often and therefore this snake is most responsible for many annual deaths caused by snake bites in Australia.
