They come froms some where in South East England. They look a lot like a Jack Russell Terrier (a type of a dog) just with a forked tail and will eat almost anything and every thing, even old tires.

Crups are loyal and friendly to all wizards and witches but do not like Muggles. Owners must pass a test that determines if their crup is capable of controlling itself in Muggle areas. Once the test has been passed, a Crup license is granted.