Adelie penguins swallow pebbles to help digest their food. The pebbles act like teeth in the stomach, grinding up food so it can be digested more easily. The penguins regurgitate the pebbles after they have served their purpose.
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Why Do Adelie Penguins Swallow Pebbles?Adelie penguins swallow pebbles to help digest their food. The pebbles act like teeth in the stomach, grinding up food so it can be digested more easily. The penguins regurgitate the pebbles after they have served their purpose. |