Where do crabs hide in the stream in winter?
Mud hole In winter, the water temperature in the stream drops, and the temperature in the mud hole is relatively high. Crabs will hide in the mud hole to avoid keeping the temperature. Crab is a crustacean belonging to the class mollusca, Decapoda. Its body is protected by a hard shell and it breathes through gills. In taxonomy, it is similar to shrimp, lobster and hermit crab.