No, not all snakes are venomous. In fact, the majority of snake species are non-venomous. Out of the roughly 3,600 known species of snakes, around 600 are venomous. This means that approximately 83% of snakes are non-venomous.
Venomous snakes possess specialized glands and fangs that allow them to inject venom into their prey or potential threats. Venom is used by these snakes to immobilize or kill their prey, aiding in capturing and consuming their food. Some venomous snakes, such as cobras and rattlesnakes, can also use their venom as a means of self-defense.
Non-venomous snakes lack venom glands and fangs, relying on other methods to capture and subdue their prey. Non-venomous snakes typically swallow their prey whole or use constriction to overpower and suffocate their victims.
It's important to note that while venomous snakes can pose a potential danger to humans, most species are non-aggressive and would rather avoid confrontation if possible. It's always recommended to exercise caution and respect when encountering any snake in the wild, regardless of its venomous or non-venomous nature.