The Japanese spider crab is a scavenger, meaning it feeds mostly on dead animals, but it also feeds on shellfish, opening the shells with its giant claws to feed on them. Life cycle. After molting, these crabs will eat their own shell to get some important nutrients. The Japanese spider crab has an orange body, but it […] Fully grown, it can reach a leg span of almost 4 metres (13 feet), a body size of up to 37 centimetres (15 inches) and a weight of up to 20 kilograms (44 pounds). Spiders grow from eggs, to spiderlings, to spiders. Unanswered Questions. The Japanese spider crab (Macrocheira kaempferi) is the largest living arthropod.

The Japanese spider crab is a scavenger, meaning it feeds mostly on dead animals, but it also feeds on shellfish, opening the shells with its giant claws to feed on them.

Life cycle.
The Japanese spider crab is found up to the depths of 2,500 feet (750 meters). The spider life cycle differs from the insect life cycle. ... What is the life cycle of a Japanese spider crab?