Dolphins

Dolphins Dolphins are our oldest friend in the sea. You can see dolphins swimming and playing in warm seas all over the world. Dolphins are popular at theme parks, too. There are many stories about dolphins. Sometimes, dolphins help ships in trouble.... More

Dolphins Dolphins are our oldest friend in the sea. You can see dolphins swimming and playing in warm seas all over the world. Dolphins are popular at theme parks, too. There are many stories about dolphins. Sometimes, dolphins help ships in trouble. They also help people who are drowning. Dolphins are about 8-9 feet (245-275 cm) long. They weigh 400-500 pounds (180-225 kg). Dolphins are not fish. They are mammals. They live in large groups. Dolphins have strong feelings and great memories. They are also very smart. Dolphins communicate by sonar. A dolphin’s sonar is much better than man-made sonar. Dolphins “whistle,” “click,” and make sonar “pictures” to communicate with each other. Today, scientists study dolphins and their sonar. The military is also interested in dolphins. People often swim with dolphins. When they swim with dolphins, people feel very happy. Sometimes, dolphins can help people who are sick. They help people with their sonar. Copyright 2005. R Less