Staffs of Queen Saovabha Memorial Institute's snake museum show visitors how to extract snake venom in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

A snake skeleton specimen is exhibited at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

A girl watches snake venom extracted by a staff member at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

Specimens of snake skulls are exhibited at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

Snake specimens are exhibited at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

The skeleton of a 4.75-meter-long Burmese python is exhibited at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

Tourists learn about the physical structure of snakes at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

A tourist views pit viper specimens exhibited at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

A staff member of Queen Saovabha Memorial Institute's snake museum shows visitors how to extract snake venom in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang)

A staff member of Queen Saovabha Memorial Institute's snake museum shows extracted snake venom in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang) 10

A long-nosed whip snake is seen at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang) 11

A green tree python is seen at Queen Saovabha Memorial Institute's snake museum in Bangkok, Thailand, May 17, 2016. Founded in 1922, the Queen Saovabha Memorial Institute is a major research organization in Thailand that specializes in rabies and animal toxins. At the institute's snake museum, visitors will see dozens of venomous and non-venomous snake breeds as well as learn emergency treatments for snake bites. (Xinhua/Li Mangmang) 12