Reports of giant anacondas date back as far as the discovery of South America, when sightings of anacondas upwards of 50 metres (150 feet) began to circulate amongst colonists, and the topic has been a subject of debate ever since among cryptozoologists and zoologists. Anacondas can grow to sizes of 6 metres (20 ft) and beyond, and 150 kilograms (330 lbs.) in weight. Although some python species can grow longer,