Australian crayfish, also known as yabbies, are freshwater crustaceans found in rivers, lakes, and ponds across Australia. They have a hard shell and long antennae, typically growing up to 15 centimeters in length. These crayfish are known for their blue-green color and are an important part of the aquatic ecosystem, serving as both predator and prey. These creatures are omnivorous, feeding on plants, insects, and detritus. Australian crayfish are popular in local cuisine and are often harvested for their sweet, tender meat. They play a significant role in the fishing industry and are enjoyed by many seafood enthusiasts.