Heaviest venomous snake
Who
Eastern diamondback rattlesnake, Crotalus adamanteus
Where
United States ()

The heaviest venomous snake is probably the eastern diamondback rattlesnake (Crotalus adamanteus) of the south-eastern United States, which weighs 5.5-6.8 kg (12-15 lb) and 1.52-1.83 m (5-6 ft) in length. The heaviest on record weighed 15 kg (34 lb) and was 2.36 m (7 ft 9 in) long.