Snakes consume a variety of items including termites, rodents, birds, frogs, small deer and other reptiles. … Venomous snakes inject their prey with venom, while constrictors squeeze their prey. They do not need to hunt everyday. Anacondas and pythons can survive for up to a year without food after feeding. Snakes are found throughout the world except Antarctica, Iceland, Ireland, Greenland and New Zealand. Most snakes are found in tropical regions. Snakes are found in many habitats including in the water, forests, deserts and prairies.