St. Mary's Dominican High School

Owl Pellet Dissection

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Crissy Giacona’s 8th grade science classes dissected owl pellets to analyze what prey they eat by identifying their bones.

Owls swallow their prey whole. They digest the flesh and fat on animals such as moles, birds, and shrews, but they cannot digest bones, teeth and fur. Owls regurgitate these indigestible parts in the form of pellets approximately 20 hours after they eat.

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