Have you ever been afraid of the dark? Or seen a spider nearby and said "yikes" and not known what to do?
The Merriam-Webster Dictionary defines a "phobia" as an extremely strong dislike or fear of someone or something.
I am one of those with a fear of extreme heights-- in an airplane I feel somewhat protected, but I wouldn't want to be at the top of the Empire State Building in New York City, which has 103 floors and is 1,454 feet from the street to the tip of its lightning rod.
Some of us are afraid of the dark, being in a dark closet, or have a fear of snakes and spiders. Researchers now say that when it comes to the snakes and spiders, this is considered instinctive, our way of surviving in the jungle or being around something that suddenly moves around us. But snakes are shy and do not seek out human contact. Spiders are interested in insects for a snack, not people, and most snakes and spiders are NOT poisonous, but control populations of other living things, like rats or flies.
Sometimes hypnosis can help people be less afraid of their particular phobia. Pets can also have fears, such as when there is thunder and lightning. If it is an extreme phobia that affects the animal's behavior all the time, then you may need to take the pet to the vet for some helpful suggestions.