Origin of modern horses

[LawrenceG]

Quite interesting:  https://www.science.org/content/article/ancient-dna-reveals-long-sought-homeland-modern-horses

[Duncan Head]

It is, thanks for the find.

[Jim Webster]

Yes interesting

[DBS]

That article led to this one: don't know if it has been posted before, but better twice than not at all...

https://www.science.org/content/article/ancient-dna-reveals-bronze-age-bias-male-horses

[Imperial Dave]

fascinating study

[Ian61]

That is an interesting article, especially the bit about the genetics, concluding that,
"The researchers suggest the new horse was calmer and less likely to have back problems, traits that would have made it easier to train and ride into battle." 
I can imagine that a horse with back problems would not be good to ride!
There are also studies about how horse colours have changed through history (it seems mostly for cosmetic reasons). I did a bit of research prior to painting up my Numidian cavalry but I have to admit that I don't like dealing with spots so most are still fairly solid colours.