AnimalsMass

Heaviest snake species

Record

182.8 kg

403.0 lb

Record holder
Burmese python

This weight was measured in 1998 on "Baby", a captive python; the heaviest specimen found in the wild weighed 98 kg.

Heaviest snake species
Photo: Tigerpython · CC BY 3.0

What to remember

The figure comes from a weigh-in in 1998: "Baby", a Burmese python kept in captivity, tipped the scales at 182.8 kg (403 lb). The figure is rated reliable.

In the wild the numbers drop sharply. The heaviest Burmese python found in nature weighed 98 kg, and the biggest wild male 94 kg. The longest wild specimen on record was measured on 10 July 2023, and adults are at least 2.35 m long.

Native to a large area of Southeast Asia, the snake was treated as a subspecies of the Indian python until 2009. The pet trade has turned it into an invasive species in Florida. Like anacondas and boas, it is a non-venomous constrictor, a member of the family Pythonidae.

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