Why is this the answer?

The answer is spider because this clever riddle uses fun word pictures to describe a small, amazing creature that lives all around us. Let's look at the clues one by one. The riddle calls it a "horrid monster" with "many legs and many eyes." A spider fits this description perfectly! Most people think spiders are a little scary, like a small monster. Spiders have eight legs, which is more than most animals we see every day. They also can have up to eight eyes, which is definitely "many eyes." This part of the riddle describes how a spider looks. Next, the riddle says, "With silver chains it catches prey." This is a great clue! What does a spider use to catch its dinner? A web! A spider's web is made of fine, sticky silk threads. When the sunlight hits the web just right, it looks shiny and beautiful, like delicate "silver chains" hanging in the air. These sticky chains are what trap the spider's food, like flies and other little bugs, which are called its "prey." The riddle then says it "eats it all before it dies." That means the spider eats the food it catches in its web. It uses its net to hunt, and when it catches a bug, it eats its meal. Finally, the last part says, "Yet in every cottage does it stay. And every castle beneath the sky." This tells us where you can find this amazing animal. A cottage is a small house, and a castle is a very big, fancy house. Spiders can live almost anywhere people do, from the smallest home to the biggest building, always busy spinning their webs in quiet corners. All of these clever details point right to the small but mighty spider!