Complex sentence: Among the largest reptiles found in Leuser are the turtles and tortoises and the most venomous are the snakes which include the King Cobra and Pythons that can reach up to ten meters in length.
Split into simpler sentences: Among the largest reptiles found in Leuser are the turtles and tortoises. The most venomous are the snakes which include the King Cobra and Pythons that can reach up to ten meters in length.