Cat Body Language

The aim of body language is to convey a message and to avoid or end physical confrontation. The aggressor or challenger would prefer to win its case without resorting to teeth and claws since it could be badly injured in a fight. Many disputes are resolved by staring each other down and yelling. Sometimes it is so subtle that humans cannot tell there was potential conflict - the dominant cat, having won the confrontation, simply walks away from the loser, sits down and looks in another direction (or start grooming - a favourite feline activity).

Body language has to be read by looking at the whole body - the face, the posture and the tail position. Looking at one of these in isolation is misleading since they all combine into an overall message. For example when a cat arches its back, is it upset or is it friendly? The same basic posture means two very different things depending on the facial expression, whether the fur is bristling and the eyes and the ears.

The Eyes

The pupils of the eyes convey part of a cat's message. As well as dilating or contracting according to the amount of light around, they contract or dilate to indicate mood. Dilated pupils accompany fear, aggressive excitement and also the mild excitement of seeing its owner, a feline friend or even dinner! The more fearful a cat is, the wider its pupils expand - it is as if the eyes are trying to take in as much information as possible. An angry, confident cat has narrowed pupils. It may be ready to provoke a fight and by narrowing the pupils it can focus better on detail and also reduce the risk of damage to that part of the eye. This sounds like a lot of work, but most humans read human expressions instinctively. If you can read human body language and facial expression, a little practice is all that is needed to learn the cat's facial language.

The Ears

When content and relaxed, a cat sits with its ears facing forward but tilted slightly back. However, its ears demonstrate that the cat is alert even when it appears half asleep. If the cat's attention is caught by a noise or a movement, its pricks its ears more upright, maybe swivelling one or both to track the source of the noise.

If the cat grows anxious, its ears move slightly back and flatten down. An fearful cat has lowered ears. The more anxious or fearful the cat is, the flatter the ears until they are lying straight backwards, flat to the skull. If the cat is fearful but aggress, the ears flatten sideways - a combination of the forward pointing "alert" ears and the flattened/lowered "fearful" ears.

The Tail

When a cat is relaxed, confident and alert, it walks with its tail horizontally behind it or even slightly drooping. This prevents the tail from becoming snagged in undergrowth. If it meets a friendly cat or friendly human, the tail goes up like a flag-pole to convey its friendliness. If it is friendly but cautious of the other cat or person, the upright tail is hooked over at the tip indicating a degree of uncertainty.

When a cat is at rest, but readying itself for action, it sweeps its tail erratically from side to side. It seems to accompany the feline thought process of "do I or don't I?". As it becomes more alert or more emotionally charged, the tail swishes faster, wider and in a more regular manner. If the cat is lying on its side, the tail will be thumping on the floor, often loudly. Though this is most often associated with anger, it may also indicate another highly charged emotion - some cats thrash their tail in ecstasy when being groomed. Violent thrashing therefore indicates high excitement or imminent aggression. A swishing or thumping tail is sometimes an invitation for another cat to join in a bout of play.Note some breeds vary like the Egyptian Mau who are know to wag their tails like a dog when happy.

The other easily recognisable tail signal is the upright bottle-brush tail. This indicates that the cat feels seriously threatened and has become defensively aggressive i.e. it would rather get away, but if provoked it will defend itself. The tail doubles in size and the hair on the cat's spine also stands erect (pilo-erection). As well as indicating the cat's state of mind, it makes the cat look bigger than it really is in an attempt to make the aggressor leave it alone.

Posture

As previously mentioned, a defensive cat erects its fur to appear bigger than it really is. A dominant cat will also try to look bigger than it really is, perhaps swaggering a little. In both cases, the cats are bluffing to try to avoid conflict.

An aggressive cat will straighten its legs (the hind legs are longer than the forelegs, so its rear end will be higher than its shoulders) and erect the hair along its spine and tail into a ridge to make itself look more impressive. A defensive cat erects not only a ridge of fur, but all of its fur, puffing itself out. It arches its back and positions itself side-on to its aggressor to make itself look larger still. It wants the attacker to think twice about attacking it. If the attacker pauses, the victim may move sideways in a crab-like fashion (frequently seen in playing kittens); it moves slowly away from its aggressor, watching for any sign of attack. The slow retreat is an attempt to avoid provoking a sudden or instinctive attack.


In contrast, a submissive cat wants to appear small and unthreatening. It may shrink into a crouch indicating that it wants only to be left alone. If this doesn't work, it may sink down on one side demonstrating its submissiveness. If the treat continues, the cat will roll over onto its back, turning its head to face its treat. This is an appeasement gesture. Unlike the dog, which will go belly-up in full submissive mode, a cat on its back is still a formidable opponent. It has done its utmost to avoid conflict, but if the aggressor continues to threaten the cat, the cat is able to fight back with all four sets of claws and with teeth.

Article Written By Dr Sarah Hartwell, written 2002.