There are about one hundred and twenty different species of rats. The most common kind is the brown rat and the black rat. Rats carry many diseases and germs. Many humans are threatened because of this. Rat means a rodent bigger than a mouse with a long tail.
Rats are also pets for humans.
There are many different reasons and this is one of them. Well, spiders just make Halloween creepier. Fake spiders are often used as decorations in houses or hung outside the door . They have a scary look . Many people are scared of spiders.