<h1>My Favorite Marine Mammals Top</h1> <h2>Five Largest Whales in the World</h2> <ol> <li>Blue Whale</li> <li>Finback Whale</li> <li>Right Whale</li> <li>Sperm Whale</li> <li>Bowhead Whale</li> </ol> <h2>Types of Otters</h2> <ul> <li>European Otter</li> <li>Giant Otter</li> <li>Northern River Otter </li> <li>Sea Otter</li> <li>African Clawless Otter</li> </ul>