Owls' physiology reflects an ingenious avian adaptation for dealing with those not-so-palatable components of their meals, such as bones and fur. The owl digestive tract separates the more digestible parts of the meal and processes those while keeping the bones and fur within the gizzard, a special stomach-like organ, where they are compacted into a pellet that is regurgitated. Dissecting the pellets can lend insight into owls' diets and lives.

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