The chances of a mare giving birth to healthy twin foals are about 1 in In most cases, one or both of the foals do not survive, and in some cases the mare will not survive. Serious breeders rarely take a chance on twins.
Amazing example of an extremely dark chocolate with white mane and tail. This color is very difficult to get, and even harder to keep, as the white mane and tail tends to darken with age on many Chocolate horses. Blue Boy's Dakota, photo courtesy of Yvon