What is a lizard and how poisonous is it

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Lizards are a widespread group of squamate reptiles, with over 6,000 species ranging across the globe. They vary greatly in size, shape, and habitat, from the tiny chameleons and geckos to the large Komodo dragon. Most lizards are characterized by their elongated bodies, tails, and four limbs, though some species are legless. They typically have scaly skin, which they shed periodically.

Lizards are primarily insectivores, but some species are herbivores or omnivores. Their habitats range from deserts to rainforests, displaying remarkable adaptability. Lizards are ectothermic, relying on external sources of heat to regulate their body temperature.

Regarding toxicity, the majority of lizards are harmless to humans. However, a few species possess venom, which they use primarily for hunting rather than defense. The most notable venomous lizards are the Gila monster and the Mexican beaded lizard. Their venom can cause pain, swelling, and other symptoms, but is rarely fatal to humans. Other lizards may carry bacteria, such as Salmonella, which can pose a health risk through handling or bites. Generally, while some lizards have defensive mechanisms that can harm humans, they are not considered highly dangerous.