1. The teeth of a crab are in its stomach. After losing its claw, a crab can grow it back.
2. Crabs are also called decapods, since they have ten (deca) legs (pods). The first pair of legs is modified into claws, biologically known as CHELAE.
3. Crabs are crustaceans i.e. unlike most of the other animals; they do not have an endoskeleton. Rather, they have an exoskeleton that acts like a shied for their body.
4. In March of 2005, a new species was found 7,000 feet below sea level. It is blind. It has hair-like cillia on its arms. It lives near volcanic vents in the sea floor. It was named the "Yeti Crab".
5. Every year, 1.5 million tons of crabs are eaten over the world by humans. The species of crab that is consumed the most in the world is the Japanese Blue Crab or the Horse Crab.
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