David Raup and Jack Sepkoski showed that rates of background extinction have been slowly declining in the animal kingdom throughout the Phanerozoic era.Compare and contrast two possible explanations as to why these rates are declining.

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The Answer of David Raup and Jack Sepkoski showed that rates of background extinction have been slowly declining in the animal kingdom throughout the Phanerozoic era.Compare and contrast two possible explanations as to why these rates are declining.

David Raup and Jack Sepkoski Showed That Rates of Background