A clone is like an identical twin except it is a genetically identical replica of an original male or female. Identical twins are identical to each other, with no original. Some people, those people with a twin, are lucky to have a clone, so that they can study “themselves” in person, but most people are not. As cloning techniques improve, human clones may become an eventual reality. As of 2009 clones are merely a source of interest, generating questions such as: “What would my clone do?”, “Would I like my clone?”, and “Would my clone like me?”.
- Terry the tadpole: (1952) Many scientists questioned whether cloning had actually occurred and unpublished experiments by other labs were not able to reproduce the reported results.
- Carp: (1963) In China, embryologist Tong Dizhou cloned a fish. He published the findings in a Chinese science journal which was never translated into English.
- Masha the Mouse: (1986) A mouse was the first successfully cloned mammal. Soviet scientists Chaylakhyan, Veprencev, Sviridova, and Nikitin had the mouse "Masha" cloned.
- Dolly the Sheep: (1996) From early embryonic cells by Steen Willadsen. Megan and Morag cloned from differentiated embryonic cells in June 1995 and Dolly the sheep from a somatic cell in 1997.
- Alpha the Bull and Beta the Bull: were cattle cloned 2001 and 2005
- Cat: CopyCat "CC" (female, late 2001), Little Nicky, 2004, was the first cat cloned for commercial reasons
- Mule: Idaho Gem, a john mule born 4 May 2003, was the first horse-family clone.
- Horse: Prometea, a Haflinger female born 28 May 2003, was the first horse clone.
- Water Buffalo: Samrupa was the first cloned water buffalo. It was born on February 6, 2009, at India's Karnal National Diary Research Institute but died five days later due to lung infection.
- Camel: (2009) Injaz, is the first cloned camel.