The crab is a type of crustacean similar to prawns, shrimp and lobster. There are more than 6,700 known species of crab found in waters worldwide and these many crab species are split into around 93 different crab groups.
Crab video
What does a Crab look like? Crabs have a thick armoured shell which protects the crab from immediate danger. The crab also has two front armoured claws which the crab uses to catch its prey.
Where do Crabs live?
Most crab species are found in the shallower ocean waters where the crabs tend to inhabit rocky pools and coral reefs. There are however, a number of species of freshwater crab that inhabit the waters in rivers and lakes and some species of tropical crab have been known to spend a great deal of time on land.
How big can crabs get?
Generally crabs dont get bigger than 40 cm in size, with the exception of the Japanese spider crab that has been known to have a leg span of over 4 meters long! The smallest type crab is the pea crab with this tiny species of crab only growing to a few millimeters.
What does a Crab eat?
The crabs hunt by sitting in a dark hole and catching potential prey that swims past. This allows the crab to feed effectively as well as staying hidden from those that would want to eat the crab.
Download free Crab wallpapers, click on the image to open the large version.
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Download free Crab color pages, click on the image to open the large version.
Scientific Name: Brachyura 
What does a Crab look like?
Where do Crabs live?
How big can crabs get? 
