Grey horses with dense speckling are more likely to be heterozygous for grey. In the previous two posts, we looked at how the placement...

Even when greys are extensively fleabitten, some areas of the coat tend to have noticeably fewer spots. In the previous post, the grey...

Artists have a different way of looking at horse color than scientists, and that perspective can be useful. Twenty-two years ago, I did...

Not only do dapples echo the pattern of capillary clusters, but other vascular details are visible on dappled horses. In the previous...

When it comes to understanding dappling as a pattern of light and dark, the key is temperature. Darkly dappled greys like the Eriskay...

This type of dappling is associated with good health and grooming. When paired with sooty patterning, the effect is very striking. My...

Dappling is an almost universally popular aspect of horse color. There are distinct types of dapples with different causes. For many of...

While some appaloosa spots have mapping from dark skin, the majority of the edging effects on appaloosas are from mixing white and...

The borders around appaloosa patterns are less uniform in width and placement than those on pinto patterns. This post gives a brief...

This is the second in a series of photos with detail shots of mapping on pinto markings In the previous post, I mentioned that mapping...

For those who attended the BreyerFest horse color seminar, here are examples of mapping on pintos. If you watched the seminar on...

This post gives an update on the new information site and links to new digital publications available for downloading. Over the years I...

This post gives an overview of this complex group of patterns and gives a brief explanation of how they have been named. Perhaps no other...

The convention the author of this blog follows is to use "sabino" (lowercase with no number) as the generic term for those patterns...

This is not a more specific term than sabino, but rather a generic term for the absence of pigment cells. In genetics, mice are used as a...

Rumors of the demise of this term are misleading. It's still widely used in the research community. The hunter mare pictured above...

The use of henna to dye the legs of horses is traditional in some countries and disciplines. Recently some photos were shared on social...

White patterns leave areas of the coat without color, but these patterns appear to add the color back again to those areas. Notebooks are...

In online settings, the most common explanatory model for talking about horse color is the base-plus-modifier concept. There are others...

"Citizen science" is where members of the public participate in scientific research. It is how this blog came to be, and something it...