Crabs have adapted to live in a number of different environments

Legs Short legs can tuck under the body to avoid predators. Long legs run quickly over rocky ground Paddles on the back legs enable swimming Spikes give good camouflage

Carapace

Spikes makes the crab hard to eat

Flat carapaces can squeeze under rocks

Bumpy carapaces provide good camouflage

Claws Fat pincers open shelled creatures pointy pincers catch fish One giant claw makes males look scary

Colour and Pattern

Bright colours attract mates and scare off predators Dull colours help with camouflage

Think about the type of habitat you would like your crab to live in. Cut out the carapace and the claws and match the crab to your environment.