Determining whether a snake is harmful involves observing its physical characteristics, behavior, and habitat. Venomous snakes often have distinct features such as triangular heads, pits near the eyes, and elliptical pupils. However, these characteristics can vary and are not present in all venomous snakes globally. Non-venomous snakes, on the other hand, usually have rounded heads, round pupils, and no pit between the eyes and nostrils. It's important to note that there are exceptions to these general rules, and identification can be complex. Consulting with local wildlife experts or using reputable guides and apps designed for snake identification in your specific area is recommended for accurate information.

In various countries, there are traditional snake catchers who possess deep knowledge about snakes, often passed down through generations. These individuals can skillfully identify, handle, and sometimes even treat snakebites from venomous snakes. Their expertise is not only in catching snakes but also in understanding snake behavior, which helps in the conservation of these reptiles and in educating people about them to reduce fear and conflict.

Snakes protect themselves through various means, including camouflage to blend into their surroundings, hissing, and making themselves appear larger to deter predators. Venomous snakes use their venom to defend against threats or to immobilize prey. The body of a snake is elongated and muscular, allowing it to move smoothly and efficiently in a variety of environments without limbs.