American Lobster

Overview

The American lobster is a prominent marine crustacean native to the cold waters of the Atlantic coast of North America. It is recognized globally as the heaviest marine crustacean species known to science. This benthic invertebrate supports a major commercial fishery across its natural range.

Appearance

This species features a robust exoskeleton that typically displays mottled bluish-green or greenish-brown coloration, though rare color mutations like bright blue or orange occasionally occur. A defining characteristic is the presence of asymmetrical front claws, split into a specialized heavy crushing claw and a narrower cutting claw. The underside of the rostrum lacks the distinct spines found in related European species.

Biology & behavior

As bottom-dwelling organisms, these lobsters spend most of their time sheltering in rocky crevices or constructing burrows on the seafloor. They grow incrementally by periodically shedding their hard outer shells through a process called molting. During vulnerable post-molt stages, individuals seek secure hiding spots while their new armor hardens.