Animal commodities have been central to human existence for millennia. As well as supplying human dietary needs in the form of meat, milk, and eggs, they have been used for clothing, ornamentation, dyeing, medicine, fertilizer, and fuel, and as domestic companions. Animal power has also been harnessed to harvest, transport, and process other major global commodities, from silver to teak. The chapter provides an overview of the commodification of animals and explores their changing role within global trade. It examines how the type and quantity of animal commodities shifted over time and emphasises the ecological and ethical issues posed by the commodification of animals. The chapter concludes with a study of the Pacific fur seal (Callorhinus ursinus), which was hunted to the point of extinction in the nineteenth century for its thick fur coat.