The tallest living horse is Big Jake, a nine-year-old Belgian Gelding horse, who measured 20 hands 2.75 in (210.19 cm, 82.75 in), without shoes, at Smokey Hollow Farms in Poynette, Wisconsin, USA, on 19 January 2010.
As of 7 July 2006, the record for the smallest living horse is Thumbelina, a miniature sorrel brown mare who measures 44.5 cm (17.5 in) to the withers and is owned by Kay and Paul Goessling (Both USA) who live on the Goose Creek Farm Inc, St Louis, Missouri, USA.
The longest distance walked by a horse on two legs is 30 m (95 ft 5 in) and was achieved by Gregory Ancelotti (Italy) riding Doc on the set of Lo Show Dei Record, in Milan, Italy, on 25 April 2009.
The highest price paid for a thoroughbred race horse at public auction is $16 million (then £9.1 million) for a two-year-old, then unnamed colt, who had yet to even race. The Forestry colt was bought through an agent, Demi O’Byrne (Ireland), in the auction held at Calder Race Course, Florida, USA on 28 February 2006.
The smallest dog living, in terms of height, is a long-haired, female Chihuahua called Boo Boo, who measured 10.16 cm (4 in) tall on 12 May 2007 and is owned by Lana Elswick of Raceland, Kentucky, United States.
The tallest dog living is ‘Giant George’ a Great Dane, who measured 1.092 m (43 in) tall on 15 February 2010 and is owned by David Nasser of Tucson, Arizona, USA.
The first cloned dog to survive birth is Snuppy, an Afghan hound puppy, created by Hwang Woo-Suk (South Korea) and his team of scientists at Seoul National University (SNU) in South Korea, after which the dog was named. Snuppy’s growth was stimulated when a donor egg cell fused with DNA from the ear of Tie (three-year-old male Afghan hound), before being transferred to a surrogate golden labrador female for 60 full days of pregnancy, before being born by caesarean on 25 April 2005.
The longest tongue on a dog measures 11.43 cm (4.5 in) and belongs to Puggy, a male Pekingese owned by Becky Stanford (both United States). The measurement was taken at Avondale Haslet Animal Clinic, Texas, United States, on 8 May 2009, when Puggy was 9 years old.
The longest ears on a dog measured 34.9 cm (13.75 in) and 34.2 cm (13.5 in) for the right and left ears, respectively, on 29 September 2004. They belong to Tigger, a bloodhound, who is owned by Bryan and Christina Flessner of St Joseph, Illinois, USA.Tigger has won many show titles and over 180 Best of Breed awards. He was inducted into the Bloodhound ‘Hall of Fame’ in 2003.Unfortunately Tigger passed away in October 2009.
The world record for the most tennis balls held in the mouth by a dog at one time is five. Augie, a golden retriever owned by the Miller family in Dallas, Texas, USA, successfully gathered and held all five regulation-sized tennis balls on 6 July 2003.
The world record for the highest jump cleared by a dog is 172.7 cm (68 in), achieved by Cinderella May a Holly Grey, owned by Kate Long and Kathleen Conroy (both USA) of Miami, Florida, USA, at the Purina Incredible Dog Challenge National Finals, Gray Summit, Missouri, USA on 7 October 2006.