Africa's deadliest snake, capable of killing with just two drops of venom, reaching speeds of 12 mph, and found across sub-Saharan Africa.

Responsible for numerous snakebite venom poisonings in Central America, these pit vipers cause tissue necrosis and internal bleeding.

Known for its potent venom causing internal and external bleeding, this rear-fanged snake's bite was once believed to be non-fatal.

Native to southeast Australia, its venom can cause rapid poisoning and is responsible for at least one human death annually.

Found in India and Sri Lanka, this viper's venom leads to acute kidney failure, severe bleeding, and multi-organ damage.

Among India's "Big Four" snakes, its venom causes internal bleeding and acute kidney failure, contributing to thousands of deaths annually.

The longest venomous snake, capable of injecting large amounts of venom in quick succession, resulting in rapid death.