Live food is living animals used as food for other carnivorous or omnivorous animals kept in captivity; in other words, small preys (such as insects, small fish or rodents) fed alive to larger predators kept either in a zoo or as a pet. In angling, live earthworms are frequently attached to fishing hook and presented as a live food to bait and catch game fish. Worms are also used as fish food for aquaria and fish ponds.