Question: What are both Kurī and American Bulldog?

Context paragraphs:
Zynga: Zynga is an American video game developer running social video game services founded in July 2007 and headquartered in San Francisco, California, United States.  The company develops social games that work stand-alone on mobile phone platforms such as Apple iOS, Android, Windows Phone and on the Internet through its website, Zynga.com, and social networking websites such as Facebook, Google+, and Tencent QQ.  Zynga states its mission as "connecting the world through games."  The company was named in honor of Zinga, CEO Mark Pincus' deceased American bulldog.

American Bulldog Association: The American Bulldog Association (ABA) was established in 1989.  The ABA holds policy of photographic validation of all the dogs they register.

Spike and Tyke: Spike & Tyke is a theatrical animated short subject series, based upon the American bulldog father-and-son team from Metro-Goldwyn-Mayer's Tom and Jerry cartoons.  Only two films were made in this spin-off series: "Give and Tyke" and "Scat Cats", both released in 1957, and produced in CinemaScope and Technicolor, as the cartoon studio shut down the year the spin-off series was started.

American Bulldog: The American Bulldog is a breed of utility dog.  There are two specific types of American Bulldog, Standard and Classic; additionally, there are also mixes of the two types.

Pit bull: Pit bull is the common name for a type of dog.  Formal breeds often considered in North America to be of the pit bull type include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and Staffordshire Bull Terrier.  The American Bulldog is also sometimes included.  Many of these breeds were originally developed as fighting dogs from cross breeding bull-baiting dogs (used to hold the faces and heads of larger animals such as bulls) and terriers.  After the use of dogs in blood sports was banned, such dogs were used as catch dogs in the United States for semi-wild cattle and hogs, to hunt and drive livestock, and as family companions.  Despite dog fighting now being illegal in the United States, it still exists as an underground activity, and pit bulls are a common breed of choice.

Catahoula bulldog: The Catahoula bulldog is a crossbreed dog created by crossing the Catahoula Cur and the American Bulldog.

Homeward Bound II: Lost in San Francisco: Homeward Bound II: Lost in San Francisco is a 1996 American adventure comedy film and a sequel to the 1993 film "".  Directed by David R. Ellis, the film features the three animals from the first film, Shadow the Golden Retriever (voiced by Ralph Waite, replacing Don Ameche, who died in 1993), Sassy the Himalayan cat (Sally Field), and Chance the American Bulldog (Michael J. Fox).  It also features the voice work of Sinbad, Carla Gugino, Tisha Campbell-Martin, Stephen Tobolowsky, Jon Polito, Adam Goldberg, Al Michaels, Tommy Lasorda, and Bob Uecker.

Kurī: Kurī is the Māori language name for the Polynesian dog.  It was introduced to New Zealand by Māori during their migrations from East Polynesia sometime around 1280 AD.

American Bulldog Registry: The American Bulldog is registered by many organisations dedicated to registering "pure-breed" animals.  However, some specialize in registering American Bulldogs only.

Spike and Tyke (characters): Spike and Tyke are fictional characters from the "Tom and Jerry" animated film series, created by William Hanna and Joseph Barbera.  Spike Bulldog (who goes by different names in a few episodes - Killer for four episodes, Butch for two episodes, and Bulldog for one) is portrayed as an American bulldog, who is generally friendly and amiable, and a loving father to his son Tyke in several episodes.  However, Spike's character also has a very stern, and fierce side, for occasions such as when he is defending his son Tyke.

Supporting paragraphs: Kurī American Bulldog
Answer: dog