There are over 5000 species of Crabs in the whole world but only 4500 species are true crabs the other 500 crabs are hermit crabs which are not 'true' crabs.
According to The World of Animals. by...
In the United kingdom there around four main types of crabs. The common shore crab also known as the Green crab is often consumed by people along with a crab called the Edible Crab. The Velvet...