Mules to Howrse

I only found a few other ideas suggesting mules, but hopefully I give them more of a point, which the other ideas I read haven't.
On Howrse, we have horses, poneys, and donkeys. If we have donkeys, why not mules?
I don't know a lot about mules, so feel free to correct me if I'm wrong, but aren't they life, half horse and half donkey or something? So, we should be able to breed horses and donkeys to get mules.
Mules could be similar to donkeys with the breeding rule - maybe they can only breed like 7 times during their lifetime.
Mules could also be used in ECs to help with harvesting crops.
(You may have seen my other idea like this involving draft howrses and new jobs. Check it ouf if you haven't, I will add mules into it if people like this idea. -Breeds and EC's is the name of that idea). So, if you have a mule and have an EC and aren't able to harvest the crops, the mule would automatically do it for you.
You could also enter mules in competitions, too.

*If I'm wrong about the horses/donkey breeding thing, let me know! thanks =)

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Mrs. Disapiontment here, sorry but of what I do know mules is that they are a cross of a horse and a donkey, being a half species they CAN NOT BREED and so I don't see much point in them, though with working with an ec it might work to maybe quicken the waiting period between planting and harvesting.

Okay, then they don't have to breed. Donkey's can only breed like 5 times and after that they're useless. I give the mules a point, which is kind of the point of mules. Like I said, to get them, you just breed a horse and a donkey. Simple as that.