The common carp (Cyprinus carpio) is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia. The wild populations are considered vulnerable to extinction, but the species has also been domesticated and introduced into environments worldwide, and is often considered an invasive species. It gives its name to the carp family: Cyprinidae. It is on the List of the world's 100 worst invasive species.

The three subspecies are:

It is related to the common goldfish (Carassius auratus), with which it is capable of interbreeding.

The common carp is native to Asia which has been introduced to every part of the world with the exception of the Middle East and the poles. The original common carp was found in the inland delta of the Danube River about 2000 years ago, and was torpedo-shaped and golden-yellow in colour. It had two pairs of barbels and a mesh-like scale pattern. Although this fish was initially kept as an exploited captive, it was later maintained in large, specially built ponds by the Romans in south-central Europe (verified by the discovery of common carp remains in excavated settlements in the Danube delta area). As aquaculture became a profitable branch of agriculture, efforts were made to farm the animals, and the culture systems soon included spawning and growing ponds. The common carp's native range also extends to the Black Sea, Caspian Sea and Aral Sea.

Kevin Scott Nash (born July 9, 1959) is an American professional wrestler and actor. As of 2011, Nash is signed to a five year contract with WWE under their WWE Legends program. Nash has wrestled under several ring names, but is most notably known by his real name in World Championship Wrestling (WCW) and Total Nonstop Action Wrestling (TNA), and in the World Wrestling Federation (WWF)/World Wrestling Entertainment/WWE, where he has also been billed as Diesel.

Between WWE, WCW, and TNA, Nash has won a total of 21 championships. He is a six-time world champion: a five-time WCW World Heavyweight Champion, and one-time WWF Champion. He was the longest-reigning WWF Champion of the 1990s, having held the title for 358 days. He has achieved notable success in the tag team division as well, being a twelve-time world tag team champion: a nine-time WCW World Tag Team Champion, two-time WWF World Tag Team Champion and one-time TNA World Tag Team Champion. He is also a one-time WWF Intercontinental Champion and a two-time TNA Legends Champion. In addition to championships, he won the 1998 WCW World War 3. Nash was a member of The Kliq, a group which included Shawn Michaels, Triple H, Scott Hall and Sean Waltman. He is also one of the three founding members of the New World Order (nWo), along with Hulk Hogan and Scott Hall.

Alexander Douglas Smith (born May 7, 1984) is a professional American football player and starting quarterback for the San Francisco 49ers. Smith was drafted with the 1st-overall pick in the 1st round of the 2005 NFL Draft by San Francisco from the University of Utah. He started his first game during Week 5 of his rookie season, replacing former starter Tim Rattay. Though he started a total of seven games that season, he did not play well, throwing only one touchdown to eleven interceptions. In 2006, he was named the starting quarterback before the season and started all 16 games for the team, as well as seven games of the 2007 season. Nagging shoulder injuries would keep him out of eight games in 2007, and following shoulder surgery, he missed all of 2008. He returned in 2009 and alternated as starting quarterback with Shaun Hill. He went into the 2010 season as the team's primary starting quarterback, but shoulder injuries again kept him on the sideline for several games. He was named the team's starter for 2011 and started every game of the 2011 season. He helped lead the 49ers to a 13-3 regular season record in 2011. On March 20, 2012 he signed a new 3-year contract with the San Francisco 49ers worth a reported $24 million.