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Anaconda snakes 
are the largest constrictor reptiles  found in the 
Americas. These surreptitious, strong, sleek animals kill their prey by 
squeezing them to death along swampy rivers of the Amazon and Orinoco Basins. 
Although it is rare, Eunectes murinus are wide and 
strong enough to swallow a person whole.
                         The camouflage coloring and patient demeanor help anaconda snakes to hunt. Smaller 
varieties have yellow skin while larger ones are more of a bright green. All 
types of water boas have rounded splotches that resemble the shadows of leaves 
or a leopard's 
spots. Most animals are in danger of being captured, including tree birds, 
waterfowl, turtles, frogs, fish, caiman, rodents, and even small 
deer.  
As a constrictor, anaconda snakes are not 
poisonous. The smooth shape of their head, as opposed to the diamond shape of 
heads of poisonous snakes like the rattlesnake, differentiates them from their 
poisonous cousins. However, almost all snakes have teeth. The anaconda will bite its prey close 
to the riverbank and drag it underneath the water to drown. Away from water, it 
will use its strong coils to wrap around their victim and squeeze tightly enough 
to suffocate them. Like most snakes, anacondas can swallow a creature much, much larger than itself 
by dislocating its own jaw and stretching its neck. After a hefty meal, it may 
not eat again for weeks. Another adaptation of this unique snake  
is that its nostrils lay on top of its nose, rather than alongside it, so it can 
swim and breathe at the same time.                     |