If dolphins are mammals, why do they live in the water? -- Dolphins are warm-blooded. How warm are they, and how do they stay warm? -- How are dolphins different from porpoises? -- How fast can dolphins swim, and how deep can they dive? -- Do dolphins breathe the same way we do? -- Do dolphins have a sense of smell? -- How high can a dolphin jump? -- Who is the most famous dolphin? -- How do dolphins sleep? -- Can dolphins hear well? -- What sounds do dolphins make? Can we talk to the dolphins? -- What's a dolphin's favorite food? What does a dolphin drink? -- Are dolphins born underwater? Do they have belly buttons? -- Do baby dolphins eat fish? -- Do dolphins have enemies? -- How old can a dolphin live to be? -- How small and how big can a dolphin be? -- Why do dolphins sometimes get stranded on land? -- Why do dolphin shows always use bottlenose dolphins? -- Do dolphins have necks? -- What is a group of dolphins called? -- Can dolphins see well, and can they see in color? -- Do dolphins cry? -- Why are dolphins always smiling? -- How many teeth do dolphins have? -- Do dolphins really like people? -- Why don't dolphins have hair like other mammals? -- What does dolphin skin feel like? -- How smart are dolphins? -- What are the rarest and the most common dolphins? -- If you're underwater with a dolphin, can you hear him? -- How far can a dolphin travel? -- Do dolphins fall in love? -- Can people ride dolphins? Is swimming with dolphins a good thing? -- What can I do to be around dolphins?