Which group regurgitates pellets?

Which group regurgitates pellets?

• A. Mammals
• B. Fish
• C. Reptiles
• D. Birds of prey

Answer: (D)

Regurgitated pellets are a characteristic behavior of birds of prey. After they seize and swallow prey, their softer tissues are digested, but the indigestible parts—like fur and bones—are compacted into a dense pellet in the stomach region and then expelled through the mouth. Scientists study these pellets to learn what the bird has been eating, since the contents reveal its recent prey. This isn’t a typical feature of mammals, fish, or reptiles, which don’t regurgitate such pellets as part of normal digestion.

Regurgitated pellets are a characteristic behavior of birds of prey. After they seize and swallow prey, their softer tissues are digested, but the indigestible parts—like fur and bones—are compacted into a dense pellet in the stomach region and then expelled through the mouth. Scientists study these pellets to learn what the bird has been eating, since the contents reveal its recent prey. This isn’t a typical feature of mammals, fish, or reptiles, which don’t regurgitate such pellets as part of normal digestion.