Royal Blue Boon, the blue roan Quarter Horse mare that made the news in 2006 by becoming the first commercially cloned horse, died last week in Weatherford, Texas, at the age of 31. Royal Blue Boon’s owner, Elaine Hall, confirmed the mare’s death on Oct. 17.

Royal Blue Boon

Royal Blue Boon (right) and her clone, Royal Blueboon Too, pictured in 2006.

Hall attributes the mare’s death to "complications from being 31 years old

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