Crayfish, also known as crawfish, crawmans, crawlmans, freshwater lobsters, mountain lobsters, mudbugs or yabbies, are fresh water crustaceans resembling small lobsters, to which they are related; taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea.

Test your knowledge with amazing and interesting facts, trivia, quizzes, and brain teaser games on MentalFloss.com.

By that time, as a “fourth-stage” lobster, it is between 15 days and a month old. At this stage, the lobster is a very good swimmer, although it appears to be helplessly bobbing up and down in the water column.

Lobsters are invertebrates with a hard protective exoskeleton. Like most arthropods, lobsters must moult to grow, which leaves them vulnerable. During the moulting process, several species change colour.

Despite their tendency to end up boiled, Get Maine Lobster’s crustaceans somehow managed to keep one customer out of hot water. After waiting until the last minute to plan something for his fiancée’s birthday, Emilio put together a next-day delivery of fresh lobsters that turned into an impressive dinner.

Easy Science for s All About Crustaceans, Lobsters, Crabs and More. Learn more about Fun Facts about Crustaceans with our Fun s Science Website!

When is lobster less expensive to buy? Why? Top of page . In Maine, lobsters are less expensive from the end of August to the beginning of November because that is when most lobsters are harvested.

What are some other names for lobsters? The Homarus americanus,The American lobster, is also known as the Massachusetts lobster, the Maine lobster, the Canadian lobster or the North Atlantic lobster.

Do lobsters feel pain when you cook them? What is the “green stuff” you find in the cooked lobsters? Can you eat it? What do you call a lobster with one claw?

How do you keep fresh lobsters alive? How do you pick up a live lobster? Are lobsters a healthy food, and how many calories does lobster meat contain?