Animals are important in this world.English has many phrases that are about animals.If you let the cat out of the bag,you ruin a surprise.Other people will be angry with you.So don't do that.If you are nervous about something,you might get butterflies in your stomach.But worrying too much might cause you to pig out.Then you eat too much food,and that isn't good.Are you ever as busy as a bee?That means you have many things to do and you run around to get them done once they are done,you can relax!