1. Reticulated Python (Python reticulatus)

Length: Up to 32 feet (9.8 meters) recorded; typically 20-25 feet (6-7.6 meters).Location: Southeast Asia (Philippines, Indonesia, and surrounding islands).Details: Known as the longest snake in the world, the reticulated python is famous for its beautiful and intricate patterns. Despite their size, they are agile swimmers and often hunt in the water.
2. Green Anaconda (Eunectes murinus)

Length: Up to 30 feet (9 meters), though typical sizes are around 20-25 feet (6-7.5 meters).Weight: Can reach over 550 pounds (250 kg).Description: The Green Anaconda is the heaviest snake and one of the largest by girth. Found in South America, it primarily lives in swamps and slow-moving streams, where it hunts prey like capybaras and caimans.
3. Amethystine Python (Morelia amethistina)

Length: Up to 28 feet (8.5 meters).Weight: Can reach over 150 pounds (68 kg).Description: This python is native to Northern Australia and New Guinea. It is a non-venomous, arboreal constrictor, known for its dark purple or amethyst-colored sheen.
4. Burmese Python (Python bivittatus)

Length: Up to 23 feet (7 meters), but averages around 16-20 feet (5-6 meters).Weight: Can weigh over 200 pounds (90 kg).Description: Native to Southeast Asia, the Burmese Python is a large constrictor and has become an invasive species in parts of the United States, particularly in Florida’s Everglades.
5. Indian Python (Python molurus)

Length: Up to 20 feet (6 meters).Weight: Around 160 pounds (73 kg).Description: This species is closely related to the Burmese Python, but is found in India, Sri Lanka, and parts of Southeast Asia. It is a non-venomous constrictor.