You were right and I was wrong

...about the horses.

VIENN (AFP) - The white coat of the Lipizzan horses performing at Vienna's prestigious Spanish riding school is caused by a mutated gene, a new study showed Sunday, solving a decades-old mystery over the horses' colour.

White and grey horses, including Lipizzans, are born with a darker coat but lose their colour between the age of six and eight due to chromosome mutations, Austrian and Swedish researchers found in the study published Sunday in the scientific journal Nature Genetics.