American lobster

The American lobster, also called the true lobster, lives along North America's Atlantic coast from Canada down to New Jersey. These hefty crustaceans wear a suit of armor in shades of blue-green or brown, often with red accents. They hold the record as the world's heaviest arthropods, with some tipping the scales at over 20 kilograms.

• Can grow up to 64 cm (25 inches) long
• Weighs more than any other arthropod on Earth
• Close cousin to the European lobster, but with different colors and spiny features