Q:

How is a crab adapted to life on the seashore?

A:

Quick Answer

Crabs have several adaptations that help them survive life on the seashore, including antennae, funnel canals, claws and legs. These assist with eating, defense and hunting.

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How is a crab adapted to life on the seashore?
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Full Answer

Antennae help shore crabs detect potential sources of food. The funnel canals, which are located on the tips of the legs, respond whenever a shore crab comes into contact with food. This prompts the crab to pounce on its prey.

Crabs typically eat mollusks, which are covered by shells. A shore crab's claws make it easier to open the shells and eat the soft parts inside the mollusk. Legs help crabs capture their prey and burrow into the sand.

A process called autotomy makes it possible for a shore crab to cast off its appendages. This is helpful if the crab is trapped by a predator or caught between rocks on the shore.

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