After dark, he ventures forth to forage for food. He pauses a cautious moment, facing his burrow and testing the neighborhood with his sensitive feelers. If things seem safe, he prowls around using his pincers to grab drifting eggs, larvae and small swimmers. The frisky hunter is an expert swimmer with eight skinny walking legs to scuttle forward, backward and sideways. But the cautious character strives to keep his tasty body in contact with sheltering mud and solid stones. And at all times he is ready to scoot into hiding.