The
Japanese spider crab, Macrocheira kaempferi is the largest arthropod in
the world in overall size, weighing up to 20 kg (44 lb), having a body
up to 60 cm (2 ft) long and having a leg span of almost 4 m (13 ft). It
is indisputably the largest member of Brachyura (crabs).
Their life expectancy is approximately 100 yrs. It feeds on dead animals and shellfish.
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