Most poisonous snakes have all of the following characteristics EXCEPT:

Many poisonous snakes are recognized by specific traits that help in identifying them and understanding their behavior. One of the notable characteristics is the presence of longer fangs, which allow them to inject venom effectively into their prey. Additionally, many poisonous snakes exhibit distinctive coloration, which can serve as a warning to potential predators about their toxicity.

The presence of a large body size is also common among several poisonous snake species, as it can be an advantage in hunting and defense.

In contrast, small teeth are not a characteristic of most poisonous snakes. Poisonous snakes typically have larger, specialized fangs designed to deliver venom efficiently. While some non-venomous snakes may have smaller teeth, the effective delivery of venom in poisonous snakes necessitates the adaptation of their dental structures to support this function. Thus, the statement regarding small teeth is inconsistent with the typical attributes of poisonous snakes.