BH Posta has launched a stamp illustrating a crayfish.
Crayfish (crawfish or crawdads) are freshwater crustaceans resembling small lobsters, to which they are related. They breathe through feather-like gills and are found in bodies of water that do not freeze to the bottom; they are also mostly found in brooks and streams where there is fresh water running, and which have shelter against predators. Most crayfish cannot tolerate polluted water. Crayfish feed on living and dead animals and plants.