Spider crabs have the longest legspan in all arthropods. Spider crabs are a group of separate classified crabs that resemble spider in visual aids and thus justify their name. The Japanese spider crab grows it's legs (each of it) about 12 feet (3.6 meters) and weighs about 20 kilograms. The European relatively smaller to it's Japanese cousin is just about some inches. These have so much in difference and so much in similarity. The Japanese live upto from 50-100 years (Depending upon circumstances; captivity or the wild) and the European live about 3 to 5 years at most. These slow-moving crabs spend much of their time walking on the seafloor searching for food — they do not swim. Instead of hunting, these scavengers look for dead and decaying matter along the seafloor. Their diet includes dead or decaying fish, invertebrates, and algae. These slow-moving crabs don't hunt, preferring to scavenge for dead animal or plant matter, though they may also eat live fish or invertebrates such as other crustaceans.
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| European spider crab |
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| A Japanese spider crab |
Their large size makes it more vulnerable as it has no hiding spots in the water also added to that is their slow moving behavior makes it quite easily spotted to it's prey and predators.
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Maanavendra roy,
Super. Would the crab get leg pain?🤔🚒
ReplyDeleteNope they are of strong and hollow bones
ReplyDelete