There are millions of species of animals living on Earth. Whenever we go, we may meet some kind of animal. They live in forests, fly in the sky, swim in water. Some live together with us in our houses, whether we want it or not. Many people nowadays keep animals as pets at their houses. Dogs and cats make great friends for children, for lonely people or for the elderly. Pets make us feel needed and happy. There is a say that dogs make best friends for human. They are also very funny sometimes. Dogs may also serve as our bodyguards. They make noise, when strangers come to visit us. They don't let others hurt us. Moreover, dogs make great guards for the blind. They are one of the smartest animals on the planet. Furthermore, having dog make us walk more, which is good for our health. All people, and especially children, learn how to be responsible, if they have a pet. Although having a pet is very nice, it also has its disadvantages. First of all, you need to have enough money to buy some food for it. You have to pay for the pet's doctor as well. Next, you need to take care of your pet-friend, even when you feel very tired. When you go to school or to work, the pet may miss you and make noise because of that. People living next to you might not like it. There are also further problems of animals, like experimenting on them and making them suffer for people's pleasure. There are people, who kill animals for fun or for money. I think that we should all respect animals and their rights. They are our friends and we have to be good for them.
