案例简介：查理·汉密尔顿·詹姆斯的照片尽管食用粘土的确切原因尚不清楚，但研究人员怀疑这种粘土可以通过中和它们的作用来帮助鸟类消化植物中的毒素。粘土舔也可能为动物提供有价值的矿物盐，尤其是在低地亚马逊地区，那里的盐通常很少。

案例简介：Photo by Charlie Hamilton James @chamiltonjames | Macaws feed at a clay lick in the Peruvian Amazon. Although the exact reason for eating clay is not known, researchers suspect the clay helps the birds digest toxins from plants by neutralizing their effects. Clay licks may also provide valuable mineral salts to animals, especially in the lowland Amazon, where there is generally very little salt.

国家地理 - Photo by Charlie Hamilton James @chamiltonjames | Macaws feed at a clay lick in the Peruvian Amazon. Although the exact r

案例简介：查理·汉密尔顿·詹姆斯的照片尽管食用粘土的确切原因尚不清楚，但研究人员怀疑这种粘土可以通过中和它们的作用来帮助鸟类消化植物中的毒素。粘土舔也可能为动物提供有价值的矿物盐，尤其是在低地亚马逊地区，那里的盐通常很少。

国家地理 - Photo by Charlie Hamilton James @chamiltonjames | Macaws feed at a clay lick in the Peruvian Amazon. Although the exact r

案例简介：Photo by Charlie Hamilton James @chamiltonjames | Macaws feed at a clay lick in the Peruvian Amazon. Although the exact reason for eating clay is not known, researchers suspect the clay helps the birds digest toxins from plants by neutralizing their effects. Clay licks may also provide valuable mineral salts to animals, especially in the lowland Amazon, where there is generally very little salt.

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国家地理 - Photo by Charlie Hamilton James @chamiltonjames | Macaws feed at a clay lick in the Peruvian Amazon. Although the exact r

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