An anaconda is a large, nonvenomous snake found in tropical South America. Although the name actually applies to a group of snakes, it is often used to refer only to one species in particular, the common or green anaconda.
An Australian olive Python pulling up it's wallaby meal. Olive pythons can grow up to lengths of 4 metres, and sometimes exceed that. They are Australia's second largest snake, coming behind the amethystine or "scrub" Python.