How long do crabs live?
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Q:

How long do crabs live?

A:

Quick Answer

The lifespan of a crab varies according to species. A blue crab lives one to eight years, while a hermit crab lives 30 to 70 years. The Dungeness crab lives up to 10 years, and the horseshoe crab lives up to 20 years or more.

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Full Answer

Red king crabs live up to 30 or more years. Crab life expectancies also vary according to habitat. Crabs kept as pets can live longer than crabs in the wild when they are properly cared for. Crabs are widely eaten by humans, making up 20 percent of all marine crustaceans that are farmed or caught around the world.

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Related Questions

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    Can hermit crabs live out of their shells?

    A:

    Hermit crabs have soft, vulnerable abdomens and need to wear shells to protect themselves. A hermit crab without a shell eventually falls victim to predators or even other hermit crabs.

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  • Q:

    Do hermit crabs hibernate?

    A:

    Hermit crabs go through periods of highly sluggish activity, or even inactivity, referred to as molting. During molting, hermit crabs develop a new exoskeleton and shed their old exoskeleton.

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  • Q:

    How do crabs mate?

    A:

    Crabs mate in the early summer and in the fall. It is important for crabs to mate when the female crab has recently molted and her outer shell is soft. If the female's shell is no longer soft, the crabs are unable to mate successfully. Before the female molts, she releases chemicals that attract male crabs to come and mate with her while there is still enough time.

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  • Q:

    What do hermit crabs eat?

    A:

    In their natural environment, hermit crabs eat decaying wood, grasses, plants, fallen fruit and things washed up on shore from the tide. Land hermit crabs are omnivores, meaning they eat both plant and animal matter.

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