The term 'animal pouch' refers to a specialized organ or structure found in some animals that is used to store food, water, and other items. The crossword solution for this term is SAC, which stands for 'specialized abdominal cavity.' This type of pouch is typically found in marsupials, such as kangaroos and koalas, and is used to carry their young until they are ready to be born. Other animals, such as opossums, also have pouches that are used to store food and other items.