Printouts Lobsters are animals that have a tough shell and live on the ocean floor. Lobsters are invertebrates, animals without a backbone. They are predators that eat crabs , clams , worms, snails , mussels, flounder, and other lobsters. After a month of growing, it sinks to the sea floor, where it will spend most of its time hiding from predators. It eats the old shell.
Lobsters continue to grow throughout their lives.
Lobsters may live to be 100 years old.