Biting the anaconda in the middle of its body may not have the same effect as biting the tip of the tail. Anacondas are very thick, so you may not be able to do any real damage unless you get a weak spot. If the anaconda bites you, push your hand further into its mouth to escape the fangs. Anacondas have curved teeth, so trying to pull your hand out will impale it further.
The name anacondas refers to a whole genus of Boa constrictor snakes which kill their prey by squeezing them to death. Although no one is sure how big anacondas can get, most scientists believe that the largest are 25 feet long or even longer. These snakes are more than big enough to squeeze a human to death. Fortunately, they rarely do.
Don't go walking alone in areas with anacondas. You are a more appealing target if you are by yourself, and you won't have anyone to help you out.
Try not to get gripped in the first place. Stay out of the shallow rivers anacondas like. If you do see a snake, don't get close to it. Watch out to see if it is tracking your movement, following you, and flicking its tongue. These are signs that it is getting ready to strike.
Do not exhale. Every time you exhale, the snake will squeeze tighter, preventing you from getting your breath back.
Bite the end of the snake's tail as hard as you can. This will cause the anaconda tremendous pain, causing it to let go.
Hit the snake with a nearby rock or other blunt object. If you can not get ahold of the tip of the tail, the best thing to do is to batter it until it releases you. Predators don't want a fight. They want something that they can eat without getting hurt themselves. If you can hurt the snake enough, it will let go of you and find easier prey.