Snakes do not have especially keen senses of sight or hearing. They rely partly on special sense organs to provide them with information about their environment.
Snakes have an eye on each side of the head, which gives the animals a wide field of view.
They can easily see movements. But they cannot focus their eyes well, and they have sharp vision for only a short distance. A snake's tongue has few taste buds. The tongue is used with an organ of smell called Jacobson's organ. The snake flicks out its tongue and picks up scent particles.