Interesting facts:
• Dolphins are highly social, playful, curious and intelligent. They live in groups or families called Pods.
• Dolphins sleep by resting one half of their brain at a time so that one eye is always open. This allows them to rise to the surface to breathe and to protect themselves from predators.
• A baby dolphin is called a calf. Baby dolphins are born tail first and suckle from their mother for up to 4 years. Mother dolphins produce milk that is extremely rich in fat, often up to 50 percent.
• Dolphins are carnivores eating mostly fish and squid and sometimes crustaceans.
• Dolphins use a type of sonar called echolocation, locating objects by producing frequencies with clicking sounds and listening for the echo. During echolocation, dolphins emit up to 700 clicking sounds per second.