Animal of other animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species. Marine fish of many species are caught commercially for food. A smaller number of species are farmed commercially. Invertebrates including cephalopods, crustaceans, and bivalve or gastropod molluscs are hunted or farmed for food. Chickens, cattle, sheep, pigs and other animals are raised as livestock for meat across the world. Animal fibres such as wool are used to make textiles, while animal sinews have been used as lashings and bindings, and leather is widely used to make shoes and
Wild animal suffering consequences such as damaging the ecosystem, interfering with human projects, or resulting more animal deaths overall. Philosopher Peter Singer has argued that intervention in nature would be justified if one could be reasonably confident that this would greatly reduce wild animal suffering and death in the long run. In practice, however, Singer cautions against interfering with ecosystems because he fears that doing so would cause more harm than good. Other authors dispute Singer's empirical claim about the likely consequences of intervening in the natural world, and argue that some types of intervention can be expected to produce good consequences overall.