Varies greatly depending on species. Overall, they lack fully developed legs and eyelids. They range from around 10 cm to several meters in length. Colors can be vivid greens, reds or yellows to darker black or brown. Many snakes have distinct stripes or patterning. Though many people fear them, snakes are a very important part of our ecosystem. They help control pest populations for a variety of animals. Many snakes found in the United States are nonvenomous and pose no risk to humans other than fright or a potential secondary infection in a bite. Despite this, many people have a deep-seated fear of snakes and don’t want any around their homes.
Snakes are cold-blooded animals, which is why they sun in the warmer months and go into hibernation during the colder. To help keep body temperatures from dropping too low, sometimes snakes will even hibernate in dens together, thus sharing the limited heat available.