American Lobster

(Homarus americanus)

Find Me In
Jules Verne
IUCN Conservation Status
Least Concern (LC)


Ocean floor along the Atlantic coast


Size: 8-24 inches

Weight: 1-9 lbs.

Lifespan: Up to 100 years


Crabs, mollusks, worms, sea urchins, sea stars, fish, and macroalgae

The American lobster, also known as the Atlantic lobster, is the largest species of lobster. Depending on its diet, genetics, and exposure to light, its color can vary from greenish brown to bright blue. Around one in a million lobsters get that bright blue coloring due to a genetic defect, like the one at Adventure Aquarium. American lobsters typically have ten legs, two with large claws of different sizes – the larger claw is used for crushing, and the smaller claw is used to rip. Scientists estimate that American lobsters may live as long as 100 years, but no one has yet figured out a way to tell a lobster's age accurately.

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