Lobsters have a pair of pincers called chelapeds, or "claws"--one is a heavier crusher claw and the other is a smaller feeding claw. The head has two pairs of antennae; they have compound eyes. The lobster has an external nose that is porous so that an odor patch can be diffused in from a high concentration to a low concentration and then out again. Females lay several thousands of eggs approximately once every two years. When lobsters grow, they have to molt (or shed) their shells and grow a new one. Lobsters live for about fifteen years. Lobsters are primarily scavengers which means they will eat almost anything, dead or alive. Lobsters are related to Crayfish, which are freshwater creatures.
There are only a few types of true lobsters. Here are some of them and their scientific classifications: