Green basilisks eat insects, snails, frogs, fish, smaller lizards, but also flowers and fruit. Females reach their sexual maturity with 15 to 18 months. Several times per year the female lays up to 15 eggs after a gestation period of approximately 50 days into a self-made hollow in the ground. The clutch is covered with substrate and is then left. The young hatch after a period of 55 to 105 days. Newborns weigh about 3 grams.
The photograph was also captured at Basel Zoo.