Lobster Facts The Largest Lobster Ever Recorded was 44.4 Pounds! Lobsters are bottom-dwelling crustaceans closely related to both shrimp and crabs. The lobsters that live in the chilly waters off the coast of Maine are called Homarus americanus, but there are hundreds of types of lobsters in the oceans of the world. Lobsters have highly developed senses of smell and taste and mostly eat fish and mollusks, although they will eat marine plant life in a pinch. In the wild, Lobsters have a lifespan of about 50 years. The annual global catch of lobsters is more than 200,000 tons! Now, that's a lot of butter!