I was wondering.. How can you tell of which sex a certain horse is, without looking at the genitals? In the picture, you can see a human female on top of a horse. We know she's female because of her facial and bodily features. But what about horses? What difference is there between a stallion and a mare besides the genitals? What sex is the horse in the picture?
Could someone explain this to me? I'm genuinely interested. Whenever I see a horse, I just call it a horse. I wouldn't for the life of me be able to say whether it's male or female.