Snakes don't have ears as we know them, but they can still hear sounds in their own way. Snakes have a specialized structure in their middle ear called the columella, which allows them to detect vibrations in the ground and in the air.
This means that snakes are able to pick up on low-frequency sounds that we may not be able to hear. For example, they can sense the movements and vibrations of prey or potential predators nearby.
In addition to the columella, some species of snakes also have small, vestigial ears that can detect low-frequency sounds, such as rustling leaves or prey moving through grass. They do not have an external ear flap or a visible ear canal like we do.