Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Halfway to Heaven (horse) -  Halfway to Heaven (foaled 25 April 2005) is a retired Irish-bred Thoroughbred racehorse and an active broodmare. After winning one minor race as a two-year-old in 2007 she emerged as one of the leading fillies in Europe the following year recording Group One successes in the Irish 1000 Guineas Nassau Stakes and Sun Chariot Stakes. She was retired from racing at the end of the year having won four of her nine races.
The answer to this question is:
Animal