Which snake is considered the most venomous based on laboratory venom toxicity?

The inland taipan is generally considered the most venomous snake based on laboratory venom toxicity.

Its venom has an exceptionally low murine LD50 value, meaning a very small quantity can be lethal to laboratory mice. The species lives in the dry interior of Australia, especially clay-soil floodplains and black-soil plains in Queensland and South Australia.

Despite its ranking, the inland taipan is rarely responsible for human bites. It is secretive, remote-ranging and usually avoids people. Venom potency is only one measure of danger: encounter frequency, temperament, bite delivery and access to medical treatment also matter.

The inland taipan is sometimes confused with the coastal taipan, a different species with a broader coastal distribution. “Most venomous” does not mean “deadliest in recorded human fatalities.”