Once considered cheap fertilizer, the American lobster is now a global culinary icon.

Nature · Published 3 October 2026 Swipe more like this →

In short: The American lobster, a ten-legged crustacean, was once so abundant in colonial America that laws restricted feeding it to servants. Today, it is a multi-billion-dollar industry. Beyond the dinner plate, these territorial bottom-dwellers possess complex sensory systems and can live for up to a century in the wild.

The American lobster, Homarus americanus, is a formidable inhabitant of the northwest Atlantic, ranging from Labrador to Cape Hatteras. These crustaceans are defined by their asymmetric claws: a heavy, rounded crusher for pulverizing shells and a sharp, steak-knife-like ripper for tearing flesh. While they are often associated with the bright red color seen in restaurants, they are naturally olive-green or brown, only turning red when cooked due to the presence of the pigment astaxanthin.

Growth requires a vulnerable process called molting, where the lobster sheds its hard exoskeleton. During this time, they are soft-shelled and often consume their own discarded shells to replenish calcium. Because they shed their shells, determining an exact age is difficult, though scientists estimate some individuals may reach 100 years. They are opportunistic omnivores, feeding on everything from crabs and mollusks to macroalgae, while serving as prey for sharks, rays, and other bottom-dwellers.

Management of the species is a cooperative effort between states and NOAA Fisheries, overseen by the Atlantic States Marine Fisheries Commission. The population is divided into two stocks: the Gulf of Maine/Georges Bank and Southern New England. Recent assessments indicate that while the former is not overfished, it is subject to overfishing. Conversely, the Southern New England stock is considered severely depleted, likely due to a combination of fishing pressure and environmental shifts like rising water temperatures and hypoxia.

Socially, lobsters are solitary and territorial, often living in burrows or rocky crevices. They communicate using scents released in urine, which they can project several feet to signal rivals or mates. Their transformation from a low-status food source to a luxury item was driven by 19th and 20th-century infrastructure improvements, which allowed fresh catches to reach distant urban markets, forever changing their place in the human diet.

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