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作为唯一有毒的蜥蜴,大毒蜥是美国特有蜥种,广泛分布于美国西南部和墨西哥。与其他一些爬行类动物不同,大毒蜥不会直接将毒液射在猎物身上,而是在开始咬住猎物时由位于下颌的唾液腺缓慢分泌一种含神经毒素的毒液。
As the only poisonous lizard, Gila is a unique species of American lizard that is widely distributed in the southwestern United States and Mexico. Unlike some other reptiles, the iguana does not shoot the venom directly on the prey but rather slowly secretes a neurotoxin-containing venom from the salivary gland located in the lower jaw when it begins to bite.