VIDEO: Giant Anaconda Attacks on Humans

Snakes are usually despised, feared and considered ruthless killer beings and anacondas are some of the biggest and strongest ones out there.

They kill by constricting the prey until it can no longer breathe. Sometimes they drown the prey, as they are well known for their swimming abilities. Like all snakes, they swallow the prey whole, head first. Because they are so strong, they can also eat really big animals.

This video shows various brutal anaconda attacks on humans!

According to Wikipedia, reports of giant anacondas date back as far as the European colonization of South America.

Anacondas are well-verified to grow to sizes of 5.21 metres (17.1 ft), and 97.5 kilograms (215 lb). In particular, the green or common anaconda is the heaviest and largest among all extant snakes in terms of robustness, and it is also the second-longest.

While the longest reputably-measured and confirmed anaconda was about 5.21 metres (17.1 ft) long, extreme lengths far in excess of this have been reported for this species, without verification. Some seemingly reliable claims that can be found describe measured anacondas ranging from 26 to 39 feet (8.7 to 11.9 m), although these remain unverified.

The first recorded sightings of giant anacondas were from the time of the discovery of South America, when early European explorers entered the dense jungles and claimed to have seen giant snakes measuring up to 18 metres (59.1 ft) long. Natives also reported seeing anacondas upwards of 10.5 metres (34.4 ft) to 18 metres (59.1 ft).

Anacondas above 5 metres (16.4 ft) in length are rare. The Wildlife Conservation Society has, since the early 20th century, offered a large cash reward for live delivery of any snake of 30 feet (9.1 m) or more in length, but the prize has never been claimed, despite the numerous sightings of giant anacondas.

In a survey of 780 wild anacondas in Venezuela, the largest captured was 17 feet (5.2 m) long. A specimen measured in 1944 exceeded this size when a petroleum expedition in Colombia claimed to have measured an anaconda which was 11.4 metres (37.4 ft) in length, but its claim has never been proven.

Scientist Vincent Roth claimed to have shot and killed a 10.3 metres (33.8 ft) specimen, but like most other claims, it lacks sound evidence. Another claim of a large anaconda was made by British adventurer Percy Fawcett. Following his 1906 survey of the Bolivia/Brazil border, Fawcett wrote that he had shot an anaconda that measured some 19 metres (62.3 ft) from nose to tail.

Once published, Fawcett’s account was ridiculed. Decades later, Belgian cryptozoologist Bernard Heuvelmans came to Fawcett’s defence, arguing that Fawcett’s writing was generally honest and reliable.

Historian Mike Dash writes of claims of even larger anacondas, alleged to be as long as 45 metres (147.6 ft), with some of the sightings supported with photos (although the photos lack scale). Dash noted if reports of a 18 metres (59.1 ft) anaconda strains credulity, then a 120 feet (36.6 m) long specimen would be an impossibility.

Anacondas have been featured in many stories around Latin America, such as those written by Uruguayan writer Horacio Quiroga, who also founded group of Argentine and Uruguayan intellectuals around 1920 called the Anaconda Association. He also published a book named Anaconda around 1921.