In general, the reported lengths are likely to be somewhat overestimated. In spite of what was for many years a standing offer of $50,000 for a live, healthy snake over 30 ft (9.1 m) long by the New York Zoological Society (later renamed as the Wildlife Conservation Society), no attempt to claim the reward was ever made. Although it is generally accepted that the reticulated python is the world's longest living snake, most length estimates longer than 6.35 m (20 ft 10 in) have been called into question. It has been suggested that confident length records for the largest snakes must be established from a dead body soon after death, or alternatively from a heavily sedated snake, using a steel tape and in the presence of witnesses, and must be published (and preferably recorded on video). At least one reticulated python was measured under full anesthesia at 6.95 m (22 ft 10 in), and somewhat less reliable scientific reports up to 10.05 m (33 ft 0 in) have appeared.
#10 Papuan python,
A large snake, with adults growing to lengths of over 5 m. they are not nearly as heavy bodied as other pythons, weighing in at no more than about 22.5 kg.they are largely terrestrial and mostly nocturnal. Despite their size and impressive strength, they are relatively inoffensive animals and are not prone to bite even if handled.This species was once classified in the genus Liasis, as well as Morelia, but was eventually moved to its own genus due to distinctive morphological characteristics.
#09 Dark-spotted anaconda,
Found in South America in northeastern Brazil, Guyana and coastal French Guiana. The type locality given is "probably collected on the island of Marajo at the mouth of the Amazon.Commonly known as the “dark-spotted anaconda”.When this snake was first caught, it left for the Philadelphia Zoo. Discovered in Guyana and certain parts of Brazil, there have been 102 of these found on record. Mating will probably take place at the end of the dry time, around June–August. They can have between 3–26 neonates in a litter, with sizes ranging between 32–60 cm.
#08 Boa constrictor,
The boa constrictor is a large snake, although it is only modestly sized in comparison to other large snakes such as the reticulated python and Burmese python, and can reach lengths from 3–13 ft (0.91–3.96 m) Boa constrictors generally live on their own, and do not interact with any other snakes unless they want to mate. They are nocturnal, but they may bask during the day when night-time temperatures are too low. As semiarboreal snakes, young boa constrictors may climb into trees and shrubs to forage; however, they become mostly terrestrial as they become older and heavier.
#07 Yellow anaconda,
The generic name Eunectes derives from Greek and means “good swimmer”.Adults are not as large as the green anaconda, E. murinus, but nevertheless grow to an average of 3.3 to 4.4 m in total length. They commonly weigh 25 to 35 kg, though large specimens can weigh 40 to 55 kg or even more.This species prefers mostly aquatic habitats, including swamps, marshes, and brush-covered banks of slow-moving rivers and streams. They can be also observed in forests searching for large game, such as brocket deer, or peccaries.
#06 Amethystine (Scrub) python,
The longest non-venomous snake in Australia is the scrub python, also known as the Amethystine due to its amethyst-like colour.In a country of deadly serpents, this venom-free snake dwarves its poisonous counterparts growing in excess of 8 metres.That depends on what species you are. To its prey it is deadly but humans are rarely attacked. Still, not aggravating a scrub python is a preferred course of action should you encounter one in the wild.
#05 Indian python,
Python molurus is a large nonvenomous python species found in many tropic and subtropic areas of South Asia and Southeast Asia. It is known by the common names Indian python, black-tailed python and Indian rock python.In Pakistan, Indian Pythons commonly reach a length of 2.4–3 metres. In India, the nominate subspecies grows to 3 metres on average This value is supported by a 1990 study in Keoladeo National Park, where the biggest 25% of the python population was 2.7–3.3 metreslong.The Burmese python was referred to as a subspecies of the Indian python until 2009, when it was elevated to full species status.[16] The name Python molurus bivittatus is found in older literature.
#04 African rock python,
The African rock python is a large, nonvenomous snake of sub-Saharan Africa. It is one of 11 living species in the genus Python. It has two subspecies; one is found in Central and Western Africa, the other in Southern Africa.Africa's largest snake and one of the six largest snake species in the world specimens may approach or exceed 6 m .The African rock python is one of seven species in the genus Python, large constricting snakes found in the moist tropics of Asia and Africa. It is divided into two subspecies, P. s. sebae and P. s. natal enosis .
#03 Burmese python,
The Burmese python is one of the five largest species of snakes in the world. In the wild, Burmese pythons grow to 3.7 m on average, while specimens of more than 4 m are uncommon. This species is sexually dimorphic in size; females average only slightly longer, but are considerably heavier and bulkier than the males. Like all snakes, the Burmese python is carnivorous. Its diet consists primarily of appropriately sized birds and mammals. The snake uses its sharp rearward-pointing teeth to seize its prey, then wraps its body around the prey, at the same time contracting its muscles, killing the prey by constriction.
#02 Reticulated Python,
The reticulated python is a species of python found in Southeast Asia. They are the world's longest snakes and longest reptiles, but are not the most heavily built. This species is the largest snake native to Asia. More than a thousand wild reticulated pythons in southern Sumatra were studied and estimated to have a length range of 1.5 to 6.5 m and a weight range of 1 to 75 kg. Reticulated pythons with lengths more than 6 m .Attacks on humans are rare, but this species has been responsible for several human fatalities, in both the wild and captivity. They are among the few snakes that have been suggested to prey on humans
#01 Green Anaconda,
Eunectes murinus (derived from the Greek ευνήκτης meaning "good swimmer" and the Latin murinus meaning "of mice" for being thought to prey on mice), commonly known as the green anaconda, is a non-venomous boa species found in South America.The green anaconda is the world's heaviest and one of the world's longest snakes, reaching 5.21 m long. More typical mature specimens reportedly can range up 5 m, with the females, at around a mean length of 4.6 m.The primarily nocturnal anaconda species tend to spend most of its life in or around water. Anacondas are also sometimes known as the water boa; they spend more time in water than any of the boas.
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