¬.¬'
I have a unicorn called Evanescence... and I've been trying to get her to have a unicorn foal, but her babies never had horns... I just found out why:
To get a unicorn foal you need to breed two unicorns of the same breed [eg, Irish Hunter uni x Irish Hunter uni,] there is no such thing as a crossbred unicorn. You must accept the covering for your mare at exactly 6:23 - though this can be am or pm. If you do all of this, there is still only a 1 in 6 chance of your mare delivering a foal with a horn.
that's crazy!