Her super dark coloration even though she should be bright red is common in Thoroughbreds. Why? No one knows - yet. The genes that modify the bay color in this fashion haven't been identified. Here's the color she "should" be:
(This is Red Cat Spirit) /2
#horses #Thoroughbred #racing #colorgenetics

If I was 40 years younger this gorgeous Thoroughbred mare, Margarite Cinco, would be munching hay in my barn. Wow! While her coat color looks black, under the hood she's bay so she should have a red body, black mane and tail, black legs. /1
#horses #Thoroughbred #racing #colorgenetics