"Because blue crabs are tropical marine species, we don't believe they can breed in cooler waters," said Seitz, a research associate professor. 3. Hiding is one of their defence strategies too. On land, crabs walk sideways, using its middle pairs of legs. The right claw has a pronounced hook and crushing protrusions used to dig out the crab’s favorite food – auger snails – and smash open their shells. The crab attaches external objects including plant matter or stones, to their bodies to allow them to better match their background [7]. Crabs are crustaceans with five pairs of legs. Its shell, or carapace, is actually a mottled brownish color, and mature females have red highlights on the tips of their pincers. Males usually go much further up into the Bay. They will do all they can to defend themselves though. The crab’s claws are well-designed for its life in the mud. The first pair is modified as pinchers and the last four pairs are walking legs. Amazingly, the blue crab will grow a completely new limb by a process known as regeneration. Cardisoma guanhumi, also known as the blue land crab, is a species of land crab found in tropical and subtopical estuaries and other maritime areas of land along the Atlantic coast of the Americas from Brazil and Colombia, through the Caribbean and Gulf of Mexico, to the Bahamas, and north to Ponce Inlet, Florida and Bermuda. Some lobsters are naturally bright red before they have been cooked. The blue crab is so named because of its sapphire-tinted claws. Blue lobsters occur about one in every 2 million lobsters. Regeneration. Crabs use their front claws to defend themselves and hold on to their food. Female blue crabs prefer the saltier waters of the lower Bay. What do they eat? As is the case with most oddly colored lobsters, the blue coloring is caused by a genetic defect. Any predator going after an Octopus better be up to a fight. The lifecycle of blue crabs begins in the Gulf of Mexico. 2. Blue glaucuses eat large, venomous prey, such as the Portuguese man o’ war and the blue button jelly, and store their prey’s stinging cells in their bodies to later use against predators. Blue glaucus can grow up to 1.2 inches (3 cm) long. A blue crab uses its large, powerful claws for ambushing small fish; cracking open mussels, snails and clams; gathering food and defending itself. How do they behave? It protects itself by burying into the mud or sand [5]. Blue glaucuses can swallow air … That is why they generally leave the larger species alone. Adult blue crabs eat both plants and animals. It weighs 1 to 2 pounds (0.45 to 0.9 kg) when fully grown. One out of every thirty million lobsters is yellow. The blue crab's carapace (or shell) is about 7 inches (17.8 cm) wide and 4 inches (10.2 cm) long. Before blue crabs mature into anything resembling a crab, they look like a cross between a mosquito and a shrimp. Crabs walk sideways using three pairs of walking legs and have one pair of paddle-like legs they use to swim just below the water’s surface, migrating up and down the Bay and escaping from predators. The most detailed guides for How To Eat Blue Crab are provided in this page. After the limb is cast off, a membrane quickly closes the wound where the limb was attached and this membrane becomes the capsule of the new limb bud which holds the new appendage during regeneration. The Octopus – Amazing Features – Read Or Listen To The Article Click Here Three hearts, a massive brain, and blue blood, they navigate unlike anything else. Bright red lobsters occur one out of every ten million lobsters. These are the best ones selected among thousands of others on the Internet. The left claw is used more surgically, to carefully remove bits of meat and feed it into the crab… The crab also learns camouflage to protect themselves from enemy. 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