is it cold? or is there a sub aural sound source that you might just hear but causes the cat to constantly think that there is a danger
No, but it might act up the first few days
I would say they are being aggressive or scared.
It would take the cat eighteen days to make it out. If it climbs up three feet and slides down two feet, then its only going up one foot a day.
A neutered male can get your cat pregnant up to 30 days after he's been neutered. So if the cat just was neutered, keep him away from your female.
You should take the cat to the vet and check it for skin cancer.
don't get angry or irritated
The hairs on the neck and back that stand up when a dog is showing aggression are called "hackles."
when the hairs stand up on a dogs back they are known as Hackles
In popular usage, it is comparing a person's reaction to a shocking event to that of a cat or dog. Your hair (except for scalp hair) will "stand on end" but since most of the hair on a human is not as obvious as a cat's or dog's, you will most likely describe the change of the texture of the skin...you get goosebumps. A hair is equipped with a muscle called the "erector pilus". When it contracts, the hair stands up, away from the skin. It makes cats look larger and serves as a non-verbal cue to other animals that trouble is about to happen. It also traps more air in the coat of an animal to provide more insulation when it is cold. Our hair still does it even though it serves no useful purpose. When a dog's hair "stands on end" because of some sort of stress or threat, it is interesting to note that it is called "getting its hackles up". Hackles are the neck feathers of a bird. Birds raise their hackles to threaten, warn and court. You can also "get your hackles up" when you get angry even if you don't have feathers.
"Getting one's hackles up" is a reference to animals that, in an effort to make themselves appear larger and more menacing, they will raise the hair on the back of their neck and down their back to serve as a visual warning to their apponent that the situation is reaching the flash point.
You must be more specific. Fierce how...by just barking? Growling snarling? Tail up? Down? Ear position? Hackles up?
It can happen several times, about up to three-maybe four times.
If the cat is able to get water from somewhere, perhaps licking dew off the leaves or bark, yes, it is possible for a cat to stay in a tree for nineteen days or even longer. It is not particularly healthy for the cat, though, to stay up there so long.
It can be infectious in body fluids (such as blood) up to several days at room temperature.
up to several days
several days up to a few weeks
No, but it might act up the first few days