Anacondas are four species of aquatic boa inhabiting the swamps and rivers of the dense forests of tropical South America. The Yellow Anaconda can be found as far south as northern Argentina.
There are two possible origins for the word 'anaconda.' It is perhaps an alteration of the Sinhalese word henakandaya, meaning 'whip snake', or alternatively, the Tamil word anaikondran, which means 'elephant killer'. It is unclear how the name originated so far from the snake's native habitat; it is likely due to its vague similarity to the large Asian python. Local names for the anaconda in South America include the Spanish term matatoro, meaning 'bull killer', and the Native American terms sucuri and yakumama. Anacondas as members of the boa family are sometimes called water boas. The Latin name for Anaconda is Eunectes (from the Greek "E???????", meaning "good swimmer").
There is some debate about the maximum size of anacondas, and there have been unverified claims of