by Ryan Perez
Although the greatest species diversity is found in the tropics, snakes occupy a wide range of habitats, from deserts to rainforests, lakes, and oceans. Snakes belong to the class Reptilia, which includes all reptiles.
There are roughly 2,500 to 3,000 snake species living today.Many snakes have only one lung; if two lungs are present, one may be greatly reduced in size
. Snakes can move soundlessly, and the uniformity of their shape allows them to blend into their surroundings in habitats where appendages might make camouflage more difficult.
Their slender, flexible bodies also give them access to underground burrows, rock crevices, and tree cavities that are impenetrable for other animals.