The term 'SWIFT CATS' is a combination of two words, 'SWIFT' and 'CATS'. SWIFT refers to the speed of an animal or object, while CATS are a type of mammal. The crossword solution for this term is 'cheetahs', which are a species of large CATS known for their incredible speed. Cheetahs are the fastest land animals, capable of reaching speeds of up to 75 mph. They are found in parts of Africa and the Middle East, and are listed as vulnerable on the IUCN Red List of Threatened Species.