Do All Snakes Make Hissing Sounds?

Many are surprised to learn that not all snakes make hissing sounds. While hissing is a common form of communication among certain species, it is not universal in the snake world. This article aims to decode the sounds and behaviors of snakes and explain why hissing only occurs in a select few.

Types of Sounds Produced by Snakes

Hissing is one of the most recognizable and alarming sounds produced by snakes, often perceived as a warning to potential threats. Hissing is typically produced by expelling air through the glottis, a space between the vocal cords. This sound serves various purposes: signaling distress, deterring predators, or acting as a deterrent to potential threats. However, snakes like pythons and boas might produce other types of sounds, such as vibrations or louder hisses, but are less likely to hiss compared to species like the King Cobra or the Spitting Cobra.

How Snakes Hiss

The hiss sound is generated when a snake expels air from its lungs through the glottis. When a snake becomes agitated, its breathing rate increases, and more air is taken in as it exhales. This process creates the distinctive hissing sound. Additionally, some snakes like the Spitting Cobra not only hiss but also have the unique ability to spit venom. This venom is directed at the eyes of the opponent, causing extreme pain and potentially temporary blindness if not washed out promptly.

Snake Communication and Behavior

Most snakes rely on body language and other behaviors to communicate rather than vocalizations. A hiss is not the best warning sound, as many snakes do not hiss when threatening to strike. Instead, you should pay attention to their posture. A tightly coiled snake is generally a threat, as they are preparing to strike. In contrast, a snake laying in a relaxed S shape is most likely just chilling out. Understanding the body language of snakes is key to avoiding an encounter that could result in a bite.

That said, becoming familiar with the body language of snakes is crucial for safely handling them. Over a decade of experience with dozens of snakes taught me that knowledge of their body language can prevent bites. Even freshly hatched neonates, while capable of biting, cannot break the skin, making them less dangerous than adults. Understanding the true nature of snake communication can reduce fear and improve safety in both the wild and captivity.