Sui - Black Staffordshire Bull Terrier cross (also referred to as a Russell York Terrier) with a white left paw and white mottling on its chest seen on episodes of the 1990s syndicated series CROC FILES (a.k.a. The Crocodile Hunter's Croc Files).

Sui is the lovable Australian croc hunting dog owned by zookeeper and wildlife expert Steve "Crikey!" Irwin and his wife, Terri Irwin. In the mid-1980s, Sui accompanied Steve Irwin into the wilds of north Queensland and spent five years with Steve helping him catch and relocate protected saltwater crocodiles. The two are now inseparable.

The N2 Toys Company incorporated Sui the Dog into a line of 'Crocodile Hunter' action figure set that features 6" and 12" action figures of Steve and Terri Irwin.

Right before the production on the full length film The Crocodile Hunter: Collision Course, (2002) Sui was diagnosed with skin cancer. Luckily the tumor was removed and Sui got be appear in the movie.

TRIVIA NOTE: The Irwin''s daughter, Bindi Sui Irwin (born July 24, 1998) is named after a crocodile from Babinda named Bindi and, of course, Sui the family dog. "Bindi" is a word the Kalkadoon Aborigines use meaning "young girl."