Blue Swimming Crab

Superpower

Its flattened back legs work as paddles, so it can truly swim, not just walk.

At a glance

Size

typically 15 cm, up to 25 cm

Lifespan

3–4 years

Depth

0–50 m

Habitat

Sandy and muddy seabeds in shallow coastal water.

Diet

Small fish, shellfish and detritus.

Can I eat it?

Safety

• Dangerous2/10

  Nippy claws, but no real threat.

Fun facts

• •Its rear legs are paddle-shaped for swimming.
• •Males are bright blue; females are duller green-brown.
• •Alimasag is one of the most-eaten crabs in the Philippines.