海豚Dolphinis my favourite animal. It is one of the most precious animals. Their bodies are very long, about one zhang(丈). Dolphins live in the sea. They live on fish, shrimps and so on.Dolphins are very friendly and peaceful. They never attack people. Instead, they have saved many people in danger in the past years. How helpful the dolphins are! Dolphins are very clever. People often train them so that they can give a dolphin show which brings people a lot of happiness and joy. Unluckily, the n