horses (without apostrophe) is the plural of horse. For example, "I saw two horses."
horse's (with apostrophe) is the possesive - something that belongs to the horse. For example, "The horse's hair was smooth."
Only if you are referring to something that belongs to that particular longhorn, like it's horns, head, hooves, legs, etc. If you are not referring to something that belongs to something or someone else, then there's no need for an apostrophe.
Sentences using apostrophe include:John's coat was burned.The liver's texture was tough.Many horses' hooves needed filed.The birds' talons were sharp.Let's go to the mall today.
4 hooves.
No gorillas don't have hooves.
Horses have hooves.
Either hoof or hooves is acceptable, but hooves is seen more commonly.
No. A spider is a spider and an apostrophe is an apostrophe.
Neither. Hooves are the part of a horse's foot that are somewhat similar to a human's fingernails. You would say- that is my horse's hoof or my horse has never had a porblem with his hooves. it is never hooves horses.
to step on people
No, horses do not have cloven hooves.
Sheep have hooves and are born with hooves.
If you are referring to the 'hooves' of an animal, then you can use the word like this; "the hooves of the cow were rough and coarse" "I heard that chewing gum is made out of hooves" "the goat kicked me with its hooves"