Carcinus maenas (green crab)

Carcinus maenas, commonly known as the green crab, is a highly adaptable marine crustacean native to the Atlantic coasts of Europe and North Africa. Recognizable by its greenish coloration and five visible sharp claws, it typically measures up to 4 inches across. Green crabs are opportunistic feeders, consuming a variety of invertebrates, plants, and small fish, which makes them effective predators. They play a significant role in their ecosystems but are also considered invasive in regions like North America and Australia, where they can disrupt local species and habitats. Their resilience and adaptability contribute to their success in diverse environments.