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Choose a Page:Can polar bears swim?What is a dugong?What is the largest animal in the ...Which whale can dive the deepest?Do whales migrate in winter?What is the difference between a s...Why do walruses have tusks?*What is the difference between a d...*Which animal is called the sea canary?How did the right whale get its name?Which is the most ferocious sea ma...How does the sea otter eat clams? What is the difference between a dolphin and a porpoise? Most dolphins have a beaklike nose and a large swelling on the forehead. Porpoises, which are the smallest of the whales, have a somewhat stubby head and never have a beak. Dolphins and porpoises are both types of small whale. They feed on fish and can swim very fast to catch their prey. A dolphin   Previous: Back Book: Best Ever Q&A Section: Nature Chapter: Sea Mammals