High Quality Content by WIKIPEDIA articles! British big cats, also referred to as ABCs (Alien, or Anomalous, Big Cats), phantom cats and mystery cats, are Felidae which are not native to Britain which are reported to inhabit the British countryside. These sightings are often reported as "panthers", "pumas", or "black cats". Their existence is unproven, but many suggestions exist to explain how these animals might have come to inhabit Britain, including that they are animals released after the Dangerous Wild Animals Act 1976 came into force, or that they are surviving Ice Age fauna.