@CruFox
The zebra is a real species, the pokemon is a fictional species modeled after a real horse. It’s like refusing to tag unicorn as horse because it’s not a horse.
Actually there are 3 different species called “zebra”, but I guess they are so similar visually that no one could tell a difference on a drawing. But everyone can see a horn. And if it’s not visible only then it would be a horse.
Species names in English are a mess sometimes. For example in genus Martes there are 7 species - with 6 named in the form “adjective marten” and one named “sable”. Why would somebody do that? They should all be martens with different adjectives, so that “marten” would be always their English name for genus and their individual adjective would be the name for individual species. I guess this is why Latin names are used in science, but we can’t expect people to use them for tags of course ;)
Zebras are also in the genus “Equus” but they are not called horses, because somebody come up with a different name for them. If they didn’t the would be just called “adjective horse”.
Same with unicorns, they have a name. And they are not from the species Equus ferus.
I think I wrote too much about this, but I like taxonomy and order and they go along nicely.