Widespread throughout the world including N. America, Europe, Asia, Madagascar, S. America, among other places.
Lives in freshwater at the bottom of lakes, rivers, ponds, marshes, swamps and streams. Can tolerate a wide array of climates.
Carnivorous & detritivorous feeding on fish, shrimp, water plants, worms, insects, snails, plankton. As well as, dead plants and animals.
Fossil records of crayfish in Northern Hemisphere date back to over 150 million years. There is a lack of fossil records in the Southern Hemisphere leading to a scientific debate on weather Southern and Northern crayfish descend from a common ancestor.
They can be classified as invasive species in certain parts of the world.