Crab

About

How crab lives

Crabs are side-walking crustaceans that scavenge, hunt, and hide across shores, reefs, and tidal flats. A crab can regrow a lost claw or leg through later molts. Coastal species are often adapted to tides, wind exposure, and rapidly changing shorelines.

Conservation

Status and habitat pressure

Stable populations still depend on habitat quality, food availability, and low human pressure. Protecting crab also depends on keeping coast, coral reef habitats healthy and connected.

Common species still depend on habitat quality, clean water, food webs, and low disturbance.

Quick Facts

Things to notice

• A crab can regrow a lost claw or leg through later molts.
• Many fish detect subtle vibrations in the water, helping them react quickly to motion nearby.
• Coastal species are often adapted to tides, wind exposure, and rapidly changing shorelines.
• Stable populations still depend on habitat quality, food availability, and low human pressure.