Snakes are cold blooded legless reptiles, closely related to lizards, which share the order Squamata. There is also one species of legless lizard which superficially resemble snakes, but are not otherwise related to them. A love of snakes is called ophiophilia, a fear of snakes is called ophidiophobia (or snakephobia), a specialist in snakes is an ophiologist.
There are over 270 species of snakes in India out of which about 60 are venomous. In size, color and habits they can be very different from each other.