The loss of face was gnawing at him like a hungry sand crab.

"Didn't want to spook any sand crabs we come across."

You could walk the beach and chase sand crabs.

We went out on the beach and started to hunt for little sand crabs.

The sand crab always moves backwards when burrowing or crawling.

He returned to discoursing with Maya about the life cycle of sand crabs.

Soon the boxes started moving like sand crabs across the beach.

We got about ten sand crabs in a bucket and then decided to let them all go.

Nina got up and crossed to the sand crab.

Soon the sand crabs would come by land and the vultures by air.