depends... it could mean it's angry and going to bite. Some horses ears are naturally back. sometimes they're smelling... Theres a few possible answers.
Well if a horses ears are laid back, that means a horse feels scared or threatened.
If a horse's ears are pointed backwards, they may be listening to you if you are riding. It can also be an expression of disapproval or annoyance.
That the horse is irritated and rather Angry. If the teeth are showing, the horse is in defense-mode. I.e Is warning you to back off.
If both of a horses ears are pinned down backwards against his head, watch out! This means the horse is angry or very irratated and he is likely to attempt a kick or bite.
Asking for howrse the answer is angry... However, only slanted backwards in real life might only indicate he is relaxed. Pinned to the neck and slanted backwards to me are very different things, but that's the answer for howrse.
ANGRY, OR UPSET, SHOW OF AGGRESSIVENESS
he is angry or upset or showing their dominance
If they are slanted back or lying flat against the head it indicates that the horse is unhappy/uncomfortable. There may be another horse too close to it whom it doesn't like.If a horses' ears are like this be careful because it is perhaps an early sign that the horse is going to kick or bite.
It indicates that they are annoyed When their ears are slanted backwards they are also likely to bite so be careful because they can really hurt you.
If a horse's ears are simply slanted backward they are usually "listening" to the rider; however if they are pinned to the head (you wouldn't even see them from a distance) the horse is angry.
They are slanted backwards either if they are perturbed, or (if someone is riding them) they may be paying attention to them. ** A horse that has its ears slanted back may also indicate pain or fear. Their eyes often reflect on how they feel so pay close attention.
horses often show their feelings by moving their ears, if the ears are forward: the horse is interested or exited in something. if the ears are slanted back or twitching: the horse is relaxed and listening to what is around him. if the ears are flat back: the horse is angry.