Why do animals swallow rocks?
CrowdScience
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The Intriguing Role of Gastroliths in Bird Digestion
This chapter explores how birds consume rocks, known as gastroliths, to assist in their digestion due to the absence of teeth. Featuring insights from an expert in Germany, it highlights the fascinating findings from dissection studies, showcasing a variety of stones collected over three decades, including surprising items like gemstones and even a pocket knife.
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