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...

The second release in the Equine Tapestry series – An Introduction to Colors and Patterns – is now available. The blog has been quiet for...

The deadline for submitting samples for the W20 Project is coming up, so send them soon if you want your horse included! I wanted to post...

Some close-up images of the reversed dapple pattern on a gold champagne Appaloosa mare, with comparisons to a sooty dapple palomino. I...

A project to raise funds and collect samples is underway to better understand the W20 variant in the W-series of patterns. I mentioned in...

One way of looking at the inclusion of sabino phenotypes in the W-series is to assume that it refers to "white spotting" in general,...

Tobiano, roan, sabino and dominant white are all mutations that involve the same gene - KIT - which is important for understanding how...

What are the differences between dominant whites and sabinos? In terms of phenotype, they do not look different. As I mentioned in the...