Describes the process of decomposition, discussing the role of decomposers such as sharks, vultures, and earthworms, and includes experiments demonstrating how decomposition supports new life.

Dung beetles: rolling rotten -- Scavengers: eating rotten -- Fungus: slurping rotten -- Welcome to the rotten log hotel -- The mighty earthworm: moving rotten -- What's rotting at your house? -- A tale of two sandwich crusts -- Rotten people.