The anaconda is a member of the Boa Constrictor family and is the largest Boa. It averages 6 m in length, 150kg in weight and a diameter of 300mm. There are two kinds of anaconda, yellow and green, with the yellow being the smaller. Anacondas live near water, in swamps of the Amazon. They are nocturnal, but they'll sunbathe during the day on a branch over hanging the water. Their green and black patches on their backs, camouflage them easily from their prey that come to drink from the swamp or river.  Anaconda's have jaws allow them to open wide enough to swallow larger animals, such as birds, small mammals, such as deer, and large rodents and fish. They have been known to swallow a cayman. After eating, anacondas rest while digesting their meal, sometimes for several weeks, depending on the size of dinner. Anacondas are bear live young and 20-100 baby snakes are born at a time, little is known about the snake's breeding cycle.